Why you need to deal with pigeons on your home’s roof

by Pigeon Patrol | May 10, 2021 | Bird Law, Pigeon Droppings, Pigeon Patrol's Services, Pigeon Spikes, Pigeons

Pigeons are bad news. While most homeowners don’t think twice about a few birds sitting on top of their home’s roof, they should when it comes to these “flying rats.” Pigeons can be a destructive pest, and their nests and droppings can damage your roof.

When you have pigeons on your roof, call KY-KO Pest Prevention to schedule your free pest inspection here in the Valley. We’re experts in humane pigeon control and removal, and we’ll get rid of the birds without any mess or fuss.

Dealing with pigeons on your roof

Unless you’re a business or commercial space, most homeowners don’t see pigeons as that big of a problem, or a threat like scorpions or rodents are. However, even if they’re not inside your home, pigeons can do serious damage.

1. Pigeon droppings are bad for your roof

Pigeon droppings naturally have high acidity, which actually is the case with most bird droppings. In fact, the acid content in them is so strong that it can cause damage to most roofing materials, particularly the underlayment of your roof.

If these droppings are left on the roof to accumulate, they’ll add to the wear-and-tear experienced by your roof. Here in Phoenix, your roof is already under assault from the elements, including the summer sun and the monsoon rains. Let KY-KO help you with pigeon problems, so that your home has one less thing to worry about.

2. Pigeon nests block water from moving off your roof

In addition to the problems caused by pigeon droppings, these birds also build their nests in roof drains, corners, and rain gutters. When the rain comes, these nests act as dams, blocking water from moving off of your roof and leading to the accumulation of water, wastage, and debris.

Severe cases of this issue can lead to roof collapses, as the continuous accumulation of water and dirt on the roof adds to the weight. The presence of pooled water is also not good for your roof’s structural integrity.

3. Pigeons will make a mess of your home and yard

For anyone who has parked their car in a public place and come back hours later to a mess, you know what this means. Left unchecked, pigeons will not only make a mess of your roof, but also your yard, your landscaping, your cars in the driveway—you get the idea.

Don’t have your home be the one on the block with obvious pigeon problems. Call KY-KO, and we’ll work on implementing a safe and humane way to keep pigeons away from your home.

For humane pigeon control and removal

Never take a pigeon infestation lightly. Given enough time, these birds can cause serious damage to your roof if you do not deal with them at the right time.

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Pigeon Patrol Products & Services is the leading manufacturer and distributor of bird deterrent (control) products in Canada. Pigeon Patrol products have solved pest bird problems in industrial, commercial, and residential settings since 2000, by using safe and humane bird deterrents with only bird and animal friendly solutions. At Pigeon Patrol, we manufacture and offer a variety of bird deterrents, ranging from Ultra-flex Bird Spikes with UV protection, Bird Netting, 4-S Bird Gel and the best Ultrasonic and audible sound devices on the market today.

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Pigeon control and removal

by Pigeon Patrol | May 10, 2021 | Bird Law, Bird Spikes, Pigeon Control, Pigeon Droppings, Pigeon Patrol's Services

Color of Pigeons

Usually bluish-gray with black bands and reddish feet.

What does a pigeon look like?

Pigeons have broad and pointed wings, with small heads and short legs. They also have a wide and rounded tail. Their coat is blueish grey. They have a soft voice with guttural series of rolling coos.

Where are pigeons found?

Originally found wild in Europe, North Africa, and western Asia, feral pigeons have become established in cities around the world. The lack of adequate sanitation, deliberate feeding of the birds by humans, and “cliff-type” nesting sites on older buildings are the principal factors that attract pigeons to cities.

They will inhabit roofs, ledges, drain spouts, lofts, attics, caves, etc. They also frequent parks and sidewalks, where they become habituated to people feeding them. Pigeons are mainly creatures of habit and tend to feed, nest, and roost in the same place day after day.

Pigeons are a pest in most urban areas in the US. On the West Coast our local pest control specialists find pigeons affect many of our customers in cities such as Boise, Roseburg, Salinas, Spokane, Novato, and Palm Springs.

What do pigeons eat?

These bird-brained beauties also eat livestock manure; they’re not picky, and actually pretty disgusting. (But please don’t feed the birds. They do carry diseases.) Other favorite treats include seeds, grains, some fruits and green feed; but will feed on insects.

Pigeon life span

Pigeons pair for life, which may last for 15 years or longer. In urban environments, they may live for 3-4 years. Pigeons have a hearing range close to humans, but they have a poor sense of taste and smell. Remember—they eat manure. They also exhibit distinct behavioral patterns like nesting, feeding, roosting, and loafing. Nesting and roosting sites (places where they sleep or rest) may occur in the same area or be as far as 5 miles apart.

Breeding occurs year-round with 1-2 eggs per batch. The eggs hatch after 17-19 days of incubation, and young pigeons will leave the nest after 4 to 6 weeks. More eggs may be laid before the first young are gone. An adult pigeon eats about one pound of food a week. Pigeons, their nests, and droppings are of major concern because 50 or more diseases and ectoparasites are associated with them.

Diseases spread by pigeons

Pigeons are of great medical concern because more than 50 diseases and ectoparasites are associated with them, which leads to their description by non-romantics as flying rodents. Pigeon nests and droppings will also lead to dermestid beetles, flies, clothes moths, and stored product pest infestations within buildings.

Asthma – bird dropping can dry up and become dust. Once inhaled, this can trigger asthma attacks.
Salmonella – also known as food poisoning, but droppings can lead to the contamination of food.
Listeriosis, histoplasmosis, cryptococcosis – all fungal diseases that can come from growing on pigeon droppings.
Diseases from parasites – pigeons often carry ticks and fleas which can lead to things like Lyme disease and other illnesses associated with those pests.

Signs of a pigeon problem

How do you know if you have just a few pigeons or if you have a serious problem? Well, there are signs that the pigeons around your property may be causing problems. They include:

Large numbers of birds – just take a look around your property and see how many pigeons there are. Once one decides to set up shop, others are likely to follow. Are there a lot of birds on the ground? Are there more roosting above? Are people having trouble just walking through the area because of the number of birds?
Nesting material – pigeons use sticks, twigs, branches, leaves and even garbage to make up their nests. Is there an increased number of this material lying around? Pigeons are not famous for their neatness, so if there is an increase of debris, it could be from too many pigeons trying to nest.
Droppings – pigeons are rather notorious for the deposits that they leave behind. Are there so many that it makes it hard to walk? If so, time to call in the pros.

How to keep pigeons away

Got pigeon issues? Due to the problems that can come with these birds, you should have an infestation addressed right away. There are ways to keep pigeons away, such as spikes. Read more about these techniques below. Plus, you should make sure pigeons cannot get to standing water or food on your property. Get rid of garbage or food that has been spilled, so pigeons may find a spot less appealing.

Pigeon control methods

There are many techniques for excluding pigeons from an infested structure. Exclusion strategies include structural modification, bird netting, plastic and metal spikes, monofilament and steel lines, and trapping. In addition, gels, paste, and liquids can also be used for excluding the birds from the structure.

Structural modification: Birds like to land on flat surfaces. When the building ledges are angled (45 degrees), it prevents birds from landing on building edges. Sheet metals, styrofoam blocks, wood, stone, and other materials can be used to give the desired angle.

Bird netting: There are several types of bird nettings that can be used for exclusion. In general, netting provides the best long-term control in keeping the birds out of a structure. In warehouses and commercial buildings where bird activity is a major concern, bird nets can be used to prevent the birds from getting into overhead pipes, roof air conditioning units can be netted off from the birds, etc.

Plastic and metal spikes: Spikes can be used as a physical barrier in preventing the birds from landing on an area, such as perching on ledges and beams of buildings. Spikes have sharp pointed edges extending out at angles. They can be installed around ledges, roof peaks, eaves, window sills, or any places that are prone to roosting. Because netting and spikes are more effective long-term control methods, they are the preferred methods.

Pigeon repellent

Pigeon repellents are available in different formulations such as gel, paste and liquids. They differ considerably in cost, effectiveness, and texture (thick and tacky, jelly like or viscous).

Choose the one that works best based on the experience. These repellents are not non-toxic and because of their “sticky” properties cause the birds to move elsewhere.

How to get rid of pigeons

If you’re dealing with pigeons, you should contact a pest professional to figure out how to eliminate these pests. As you may have noticed, pigeons can get droppings on buildings, damaging the appearance of these structures. Their droppings can also pollute zones of human activity as well as food. A Western Exterminator expert can ascertain how to handle the situation and help you know how to inhibit these birds for the future.

Bird control solutions from Western Exterminator

Pigeons aren’t the only birds home and business owners need to be concerned about. Seagulls and starlings are known to cause damage and spread disease as well. With proper identification, our specialists can create bird control plans specifically made for you to ensure your property is bird-free.

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Voted Best Canadian wholesaler for Bird Deterrent products ten years in a row.

How to Get Rid of Pigeons

by Pigeon Patrol | May 3, 2021 | Animal Deterrent Products, Bird Deterrent Products, Bird Netting, Bird Spikes, history of pigeons, Pigeon Control, Pigeon Patrol's Services, Pigeon Spikes

Need pigeon removal in your hometown?

Pigeons are a determined bird, doggedly living near humans because of the ample food supply. These birds are indiscriminate eliminators of waste, leaving liquid splatters of dropping anywhere they travel. Their lack of concern for cleanliness extends into their everyday activities, and water contamination has been traced back to pigeon carcasses and feces in water towers near roosting sites. The waste from these birds, which are most commonly seen in urban areas, is very corrosive. Concrete, limestone and metal all suffer from the ill-effects of pigeon droppings. In cities, constant cleanup alone costs thousands of dollars.

Because of the homing ability of pigeons, there are difficulties with relocation. This species of bird was once used as a messenger between civilizations, finding their way over hundreds and thousands of miles. The only way to get rid of pigeons is to discourage them and prevent them from frequenting undesired locations. There are a number of ways to accomplish this, some proven to show more success than others. Information about pigeon trapping – analysis and methods for how to trap.

Unsuccessful methods of pigeon control deal mostly with predator fear. Plastic owls are a favorite of the public when, in reality, the fake predator appears as just that—fake. A pigeon will not be any more leery of an unmoving owl than it would an unmoving human. Pigeons are largely unaffected by unpleasant smells, though it has recently been proven that their homing ability is based on scent mapping and not electromagnetic fields. Sounds are another flop when it comes to pigeon control. Ultrasonic sound emitters may very well produce noises humans can’t hear, but rarely are those sounds ‘annoying’ to birds. If a pigeon can put up with all the noise congestion in a busy city, some random sounds from an ultrasonic radio aren’t going to bother it.

The most practical ways to get rid of pigeons is to convince them that they do not or cannot stay near your home or business. Any ledge can be a roosting site. By installing pigeon nets, bird spikes or electric shockers, pigeons will be less inclined to settle on those surfaces. Nets and spikes prevent roosting all together. Electric strips may be difficult to install at higher locations, but many brands offer solar power and require little maintenance. Electric strips do require more attention than netting and are often more expensive. If your building has smaller sections of roof, bird “spiders” are useful instruments. The wire device resembles a sprinkler in design with thin lines of arced metal extending outward from a central location. These wires are loose and are not strong enough to support the weight of a bird.

Information about how to keep pigeons away – prevention techniques.

There is something to be said for determination, too. Even though most scare tactics do not work on pigeons, harassment techniques can prove beneficial if done frequently and without fail. If pigeons have taken over your yard, letting your dog out will chase them away. Yes, they will come back when the dog is gone, but if this scenario is repeated often enough the pigeons will learn that your yard is not the easiest place to visit. When it comes to opportunistic birds, life is all about easy.

Some towns and cities have experimented with employing the use of falcons to control pigeon populations. The benefit to using birds of prey is that they often keep the pigeons moving, preventing any one roosting area to become long-term. Unfortunately, falcons cannot eliminate a large enough number of the nuisance birds to make a noticeable difference without becoming a nuisance bird themselves.

Pigeons are products of their environment. If they were not deliberately fed in parks and on streets a decline in their nuisance behaviors would be seen. These birds can live on naturally occurring food sources. Unfortunately, it is the poor sanitation habits of people that keep these animals desiring our leftovers. If pigeons have overrun your home, be sure that all garbage and compost is carefully disposed of. You may not be able to control the habits of the neighbors on your block, but you can make your house that much more uninviting by following good hygiene habits.

Pigeon Information & Facts

Pigeon Appearance: Pigeons are robust birds with short necks, usually gray in color with a faint iridescence to their feathers. They have a characteristic back and forth rhythm to their head. This bobbing is a mechanism that allows the birds to focus their vision and perceive depth. Pigeons have duplicate black bands on each wing, but the coloration on the main part of the body can vary. Their feet are suited for perching on ledges and high peaks. The beak of the pigeon is medium in both length and width, ideal for pulling apart bread, picking up small food pieces, or fishing spiders out of cracks.

Pigeon Habitat and Behavior: Pigeons are most often seen in cities. This habitat preference is largely due to the surplus of food available and the high roosting opportunities. Pigeons are fond of the water towers on tall buildings, often building messy nests on the rim. For this reason, most cities require water towers be completely sealed to prevent the birds or their waste from contaminating the water supply. A pigeon will nest almost anywhere and will often do so with many others of its kind. A roost can be made atop any vertical surface. Pigeons are known in invade gutters, ducts, air conditioners, attics, warehouses, and drains. They are not overly concerned with sanitary conditions and will utilize any vertical object in any location for their purposes.

Pigeons are also very food-driven. This problem has been made serious by the continued, deliberate feeding of the birds in urban areas. The birds have little fear of humans and will often converge around people in parks and near restaurants. Pigeon feeding is a common hobby of many city-goers, yet another reason for the lack of caution around humans.

Egg laying can take place as often as every other month. Courtship between the male and the female is brief, and the resulting egg clutch usually only contains two eggs. An abundance of pigeons will result in quick overpopulation, regardless of how many eggs are laid per pair. Some cites have sought population control by replacing viable eggs with fake or unfertilized eggs. This tactic may be effective short-term, but pigeons will lay another clutch once the original appears unproductive.

Pigeon Diet: Pigeons will scavenge for almost any type of grain-based food source. The habit of city restaurants discarding stale bread into parks increases the role this type of food plays in the pigeon diet. In nature, the birds eat insects, berries, seeds, grains, and spiders.

Pigeon Nuisance Concerns: Pigeons are not as bold as some species of birds adapted to living off human leftovers. The major concern when it comes to this species centers on its roosting habits. Pigeons most often roost in number. They are not a sanitary bird, often eliminating waste in their own nests, and living on top of the bodies of their own kind. Pigeon waste is caustic and will do permanent damage to stone and concrete. In many cities, water contamination due to pigeons and their droppings has been a major concern. Because these birds pool around areas with a high opportunity for food (such as restaurants), there is a logical concern for public health.

Pigeon Diseases: The most common zoonotic disease associated with pigeons is called histoplasmosis. This disease is caused by a fungal infection facilitated by the dried powder of pigeon feces. People with compromised immune systems should also be wary of cryptococcosis, another fungal infection affecting only those without healthy defenses. Psittacosis, more commonly transmitted by exotic birds, has been reported in larger cities. These illnesses present with flu-like symptoms, making diagnosis and treatment difficult unless the disease is well underway.

This site is intended to provide pigeon education and information, so that you can make an informed decision if you need to deal with a pigeon problem. This site provides many pigeon control articles and strategies, if you wish to attempt to solve the problem yourself. If you are unable to do so, which is likely with many cases of pigeon removal, please go to the home page and click the USA map, where I have wildlife removal experts listed in over 500 cites and towns, who can properly help you with your nuisance pigeon.

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Pigeon waste, cosmic melodies and noise in scientific communication

by Pigeon Patrol | May 3, 2021 | history of pigeons, Pigeon Control, Pigeon Droppings, Pigeon Patrol's Services, Pigeons

There it was, that darned noise again.

Nobody could possibly be happy cleaning pigeon droppings. Yet Arno Penzias and Robert Wilson were being forced to do it. As good scientists they simply could not avoid it, since they had to discount the role of this “white dielectric substance” in the noise that was plaguing their equipment. When they finished with the cleaning and dispatched the pigeons by mail to a faraway place, the noise still did not disappear. And it seemed to come from all directions. The implications of this annoying constant background hum, corresponding to a temperature of only 3 degrees above absolute zero, signified one of the most momentous discoveries in twentieth-century physics, notable even among Nobel Prize-winning discoveries.

Arno Penzias, the German-born physicist who fled from the Nazis with his family in 1939, is at Lindau this year along with his co-recipient Robert Wilson. There are two other physics Nobel laureates this year at Lindau- George Smoot and John Mather. The four men whose work is separated by forty years share a very close connection. Smoot and Mather’s work put the capstone on that of Penzias and Wilson’s. In a way the work of these gentlemen eclipses the work of all Nobel laureates since it deals with something that happened long before any of the others made their discoveries. In fact, it was so long before that it dealt with the beginning of time itself…or so we think. Penzias and Wilson discovered what is called the”cosmic microwave background radiation”, which is nothing less than the notes from the harp that the universe played when it fired up. Just like you can guess the identity of the great conductor Herbert von Karajan from listening to the thundering notes of his performance of Beethoven’s 9th symphony, so can you discern the violent birth throes of the universe from the noise this cosmic cataclysm left behind.

It was noise, quite literally. And it was bothering Penzias and Wilson when they were working on a radio antenna inthe fall of 1964 in a small town called Holmdel in New Jersey. There, Bell Laboratories which owned the instrument had turned it over to Penzias and Wilson for pure science. That was a different age, when companies like BellLabs gave free rein to researchers to pursue their own ideas; in the ensuing decades the institution would produce a steady stream of Nobel laureates,an astonishing feat for an industrial laboratory. But at that point the lab was just getting warmed up.

The antenna was about twenty feet wide and shaped like a horn to minimize reception from the sides. It was originally designed to detect transmitted signals from Echo, the first communications satellite. But now Penzias and Wilson were using it to detect radio waves from celestial bodies. The receiver was tuned to detect only frequencies in the microwave region of the spectrum.

But there it was, that darned noise again. No matter what they did to the antenna, it was steadily humming in the background, like one of those overenthusiastic teenagers deliberately trying to annoy you. Like good scientists, Penzias and Wilson started to eliminate all possible sources of noise they could find. Radio noise could arise from any number of sources. It could come from the ground which was warmed up by the sun. It could arise from the earth’s atmosphere, or from the gas between the stars, or from the emission of molecules in outer space. Noise could be generated by waves bouncing off some of the sharp edges in their antenna. Oneby one the scientists investigated and discounted all these sources. They covered up the sharp edges with aluminum tape. They turned the antenna towards and away from major cities like New York. And of course, finally in desperation, they cleaned up waste from a family of pigeons that was roosting in a small part of the antenna horn. They dispatched these pigeons to the main offices of Bell Labs (like good homing pigeons the birds promptly showed up two days later). The noise still would not disappear. Like constant mumbling from disgruntled voters at a campaign speech, it simply would not die.

The two men were accomplished scientists and they did not doubt their own skills. Penzias had worked with Isidor Rabi (whom we met earlier) and Charles Townes, the inventor of the maser, at Columbia University. Wilson had gotten his PhD. at Caltech a few years ago. Their temperaments also complemented each other. Penzias was a big picture man, trying to tie together facts in an overarching thread. Wilson was much more detail-oriented and could patiently tinker with equipment until he got it right. Together the scientists were confident in their analysis and believed they had discarded all sources of noise. Yet it remained. For the moment they decided to take a break.

It was December of that year, and Penzias was coming back on an airplane from a conference. The “noise problem” was on his mind and he mentioned it to a fellow astronomer named Bernie Burke. A short time later, Burke called Penzias back with some interesting news. He had just seen a manuscript written by a physicist named Jim Peebles at Princeton University along with his supervisor Robert Dicke. The manuscript predicted that because of the intense heat during the birth of the universe, there should exist today a remnant of the Big Bang, which would manifest itself uniformly as steady background radiation. Because of the time elapsed since the Big Bang, the temperature of this radiation should be no more than afew degrees kelvin above absolute zero.

Oh yes, and it should be detectable as constant hiss in a good radio telescope.

I leave it to the students at this year’s Lindau meeting to personally ask Penzias what he must have felt when he heard about the Peebles-Dicke paper from Burke. But it surely must have sent his heart racing. Intrigued, Penzias called Dicke. Dicke’s heart must have raced even more because just then he had been trying to construct his own antenna to detect the cosmic noise that his paper predicted. Dicke promptly got into his car and drove the thirty miles or so from Princeton to check out Penzias and Wilson’s data. When he confirmed its authenticity, he must have felt an intense mix of excitement, amazement and chagrin. He had narrowly missed making the discovery that won Penzias and Wilson the Nobel Prize for physics in 1978.

Penzias and Wilson in front of the Holmdel radio antenna

Sounds from a faraway time

The evolution of the idea of the cosmic microwave background is almost a textbook study of ignorance and triumph, and how experimentalists and theoreticians can sometimes unintentionally delay progress by failing to communicate with one another. The Big Bang theory was proposed by Georges Lemaître, a Belgian Roman Catholic priest, although interestingly the term ‘Big Bang’ was pejoratively coined by a detractor of the theory, Fred Hoyle. Later the theory was developed by the brilliant and colorful Russian physicist, scotch lover and popular science writer George Gamow and his colleagues, Ralph Alpher and Robert Herman. After World War 2, Gamow’s colleagues Alpher and Herman predicted the cosmic microwave background. This was based on their ideas about nucleosynthesis- the formation of elements in the universe.

Robert Herman (left) and Ralph Alpher. In the middle is George Gamow, materializing out of a bottle of ‘Ylem’, the primordial soup from which our universe originated.

Big Bang Theory cosmology is based on Einstein’s theory of gravitation. In 1929 Edwin Hubble had already made the groundbreaking discovery that the universe seemed to be expanding. This meant that at some point back in time it must have been infinitely compressed. Compression means high temperature, in this case, a very high temperature of 10 billion degrees when the universe was only one second old. At this temperature matter as we know it ceases to exist, and the universe consists of a thick boiling broth of subatomic particles and electromagnetic radiation in the form of very high frequency gamma rays. Electromagnetic radiation is emitted and absorbed by all electrically charged particles. When there are a sufficient number of particles, this radiation manifests itself as black-body radiation. Black-body radiation can be defined by a certain value of energy at a given frequency range and thus can be completely fixed by the temperature. At ten billion degrees, there would be massive creation of electrons and positrons from the energy of other moving particles. But after one second, Big Bang theory physics predicts that if the number of photons is larger than the number of matter particles, then the initial black-body radiation will continue to be black-body radiation. The only change in this radiation is that it cools with the expansion of the universe. About 400,000 years after the beginning, an epochal event happened. Stable atoms of hydrogen began to form, and the radiation was ‘decoupled’ from the matter and was left free to wander on its own. Thus, even today, almost fifteen billion years later, space should be filled with black-body radiation left over from the Big Bang. Its temperature should be roughly 3 K.

This at least was what Alpher and Gamow conjectured. But they were not the first ones to think about it. In fact the microwave background had been indirectly observed in the late 1930s and early 40s by American astronomers. These astronomers saw faint signs of light absorption by certain molecules in outer space and concluded that the molecules were somehow being ‘pumped up’ with energy that came from a temperature of 2.3 K. Unfortunately, there was yet no theoretical framework in which this observation could fit, and it became part of the countless number of other details in astronomy. Now, when Gamow, Alpher and Herman formed their ideas, they did not know about this experimental work. Most incredibly, a couple of years later, two Russian physicists published a paper saying that not only should this background exist, but that the best detecting instrument for it would be the radio antenna in Holmdel, New Jersey! As if to cap this circus of ignorance and lack of communication, Penzias, Wilson and Dicke had all not heard of these earlier predictions; somehow unlike the cosmic background, the signal had been lost in the noise. One can only wonder how things would be if this drama were to be enacted today, in the era of the Internet and Email.

Dicke in fact thought he was the first one proposing the cosmic microwave background. His reasoning was fascinating and harkened back to analogies in Hindu and Buddhist philosophies about the creation of the universe. Dicke was a proponent of the ‘oscillating universe’ which posits that the universe has no end or beginning but cycles through time. According to his logic, if the heavy elements had been created through nucleosynthesis, they could not keep on increasing in proportion indefinitely; after all, the observed universe is largely contained of hydrogen and helium and not heavy elements. Thus, at some point the heavy elements would have to be annihilated to make room for the next batch of matter. This annihilation would produce radiation, and it’s this radiation that would manifest itself as the cosmic background. Dicke’s oscillating universe tome is a perfect example of a scientific ‘model’, a conceptual construction that retains some simple aspects of the universe but which can neatly explain a key observation. As with models, Dicke’s prediction of the microwave background does not uniquely depend on the oscillating universe model. In fact it arises perfectly from the modern day theory of the Big Bang.

Dicke was supremely competent for this kind of theorizing. Today he is the underappreciated man in the cosmic microwave background story. Dicke was a genius at electronic devices, working on important radar components at the famous Radiation Laboratory at MIT during the war. In the early 60s, he did a highly accurate measurement proving the equivalence of inertial mass and gravitational mass, a foundational concept of Einstein’s relativity. Dicke’s thirst was not slaked just by doing experiments. He also provided the first quantum theory of the laser. By the mid 60s Dicke was a legend, the Enrico Fermi of his time, highly accomplished in both theory and experiment. As it turned out though, even Dicke could not escape the vagaries of space and time. Robert Henry Dicke died in 1997.

Robert Henry Dicke (1916-1997)

In 1989, a satellite called COBE was launched by NASA that would measure Penzias and Wilson’s microwave background to unprecedented accuracy. Two of the principal scientists in this endeavor were George Smoot and John Mather who are at Lindau this year. The satellite’s measurements of the black body radiation curve were so remarkably accurate that the error bars in the curve which typically extend on top and bottom were almost lost in the signal.

The COBE satellite black-body radiation curve with the data points (red) plotted on the theoretical spectrum (black). The two match up almost perfectly

The COBE satellite followed by the Wilkinson Probe satellite launched in 2001 put the icing on the microwave background cake. The Big Bang theory has attained the status of one of our most highly refined and validated theories, thanks to the work of Smoot, Penzias, Wilson, Mather and many others. It seems only wonderfully fitting that Penzias, Wilson, Smoot and Mather are all attending this year’s meeting, coming full circle and neatly tying together the ends of a story spread over 40 years, which in turn tells the story of moments in time billions of years ago.

George Smoot and John Mather (Physics, 2006)

The story of the microwave background is an exercise in scientific history, demonstrating how ideas can, and sometimes do not, build on top of each other. It would have been interesting to see how the same story would have played out in today’s age, when the barriers to communication have been all but shattered by the availability of hundreds of years of research that can be accessed through the click of a mouse. Scientific ideas are hostage to the same qualities of human fallibility, determination, creativity, and of course, the uncertainties of space and time, as are other aspects of the human experiment. All we can do is persevere.

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Pigeon Caught Flying Drugs Into Prison

by Pigeon Patrol | May 3, 2021 | Bird Law, Bird Spikes, Doves, Pigeon Control, Pigeon Patrol's Services

Officials believe an inmate at a jail in Costa Rica trained a feathered friend to smuggle cocaine and cannabis in a pouch.

A pigeon smuggling cocaine and cannabis into a prison in Costa Rica has been caught by guards.

The bird was seen landing in the central concourse of the medium security La Reforma jail, in San Rafael de Alajuela, where it was taken into custody.

The drugs were contained in a small zipped up pouch strapped to the animals chest.

About 14g of cocaine and at least the same amount of cannabis were inside wrapped in plastic.

Costa Rica’s Ministry of Justice and Peace released the animal’s mugshot under the headline caption “narcopaloma”, meaning “drugs dove”, and listing the date of the animals detention.

Realidad7 reported the drugs had a street value of around £180 ($281).

Prison officials said they believe the drugs were destined for use by an inmate who may have trained the pigeon to act as a courier.

Director of the Penitentiary Police, Paul Bertozzi, told Spanish news agency Efe that it showed the need to be vigilant.

“Drug traffickers are using unimaginable ways to achieve their macabre atrocities,” he said.

“This (use of a pigeon) is nothing new. In the past (the traffickers) have used cats and dogs to pass drugs to prisoners. Now it seems they are using pigeons to carry in their wares from the outside.”

Although it is the first time the Costa Rican authorities said they had come across the practice, it has previously been reported in Argentina in 2013 and Colombia in 2011.

The pigeon was later taken to a zoo where it was expected to remain behind the bars of a cage.

Biologist Oscar Ramirez told Realidad7 that pigeons can be trained to travel several miles with small loads.

During the Second World War, more than 250,000 homing pigeons were used to transport messages between front line Allied troops and top brass, according to the Royal Pigeon Racing Association.

Source

Voted Best Canadian wholesaler for Bird Deterrent products ten years in a row.

Pigeons – Rock Dove

by Pigeon Patrol | Apr 26, 2021 | Bird Law, Pigeon Control, Pigeon Patrol's Services, Pigeon Predators

Commonly known as Pigeons, Rock Pigeons are often considered a nuisance by some city officials and some farm businesses.

In cities they congregate in large flocks and can create messes with their droppings.

On farms, eating grains and possible harm to livestock through bacteria and viruses are concerns about these birds.

Many pigeon deterents are available online to prevent nesting in areas they’re not wanted.

Introduced into North America from Europe in the 1600’s, these birds have been associated with humans for thousands of years.

Rock Doves are thought to have been the first domesticated bird, raised for meat as far back as the time of the ancient Egyptians.

Description

Pigeons have different colors due to breeding by humans. They are the descendants of the wild Rock Dove of Europe.

About 13 inches in length with a dark gray head, iridescent neck, with a light gray back and 2 dark wing bars.

Mating – Breeding Habits

Like Mourning Doves, pairs are monogamous, often breeding in consecutive seasons for as long as both birds of a pair live.

Most will attempt to raise several broods each year. Sometimes as many as four or five broods will be raised in a single year.

The breeding season of these birds can be all year provided climate conditions allow. There seems to be some slowing down during the winter months.

Nesting Habits

The nesting habits of Pigeons are a bit unique. The male chooses a site in view of the female, selecting one stick and bringing it back, lays it in front of his mate.

The female who stays at the nesting site accepts the sticks the male brings to her and places them underneath her.

The nest of these birds can be found along building ledges, rafters, beams, under bridges or inside barns.

The nest is saucer-like in shape and made of stems and leaves.

The female may sit on the nest a day or two before the first egg is laid. Generally 2 white eggs are laid.

Both the male and female will incubate but the female will spend the most time on the eggs since she will be on the nest from mid-afternoon to mid-morning.

Incubation last for about 18 days. When the eggs hatch the young are covered in yellow down.

Young pigeons in the nest are referred to as “squabs”

Initially, the squabs are fed what is referred to as crop milk. This is a regurgitated thick liquid food that comes from the parents crops.

At about 10 days the squabs are fed increasing amounts of the food types that adults eat and are no longer dependent on crop milk.

The young will double in size in a day and a half. Making them one of the fastest growing vertebrate in the world.

Within 2 weeks the flight feathers begin to emerge and by week 3 the squabs are covered in feathers.

The tail and full feathering is completed by the 28th day and their weight is that of an adult.

The young will now leave the nest and the male will teach them what they need to know to survive.

This is 10 – 15 days longer than most of our backyard birds.

The female will begin a new clutch and this cycle will repeat about every 30 days when weather cooperates.

Do Pigeons Reuse the Same Nest

It’s more accurate to say that the same nest site is used as the second and subsequent nest are built on top of the previous nest.

Nest that are several years old can measure out to be as much as 7 inches high and 19 inches wide.

Feeding Habits – What Pigeons Eat

Rock Pigeons feed on the ground. To prevent seed spoilage and to keep the birds healthy a ground feeder is recommended for all ground feeding birds.

The best types of food to offer these birds are properly mixed seeds specifically made for doves and pigeons.

For more information on seeds and photos of each, please see our Bird Seed Page.

Predators

The primary preadators of pigeons include: man, peregrin falcon, and cats. Nest predators include oppossums, raccoons, crows and owls. Hawks will capture perching birds.

Are Pigeons Smart Birds?

According to Professor Richard J. Herrnstein at the Harvard Psychological Laboratories they are. Pigeons were smart enough to learn all the letters of the english alphabet.

In another study, Pigeons were able to recognize themselves in a mirror. This makes them one of six species and the only non-mammal to be able to do so.

So yes, Pigeons are a pretty smart bird.

What is the Lifespan of Pigeons?

Pigeons may live 3 – 6 years in the wild with the average being 3 – 4 years. In captivity they have lived as long as 15 years depending on the care given to the bird.

Pigeons in History

During the world wars, Homing Pigeons were trained to return to a loft in the UK.

Troops then took the pigeons with them and used them to send messages when radio and written communication were being intercepted.

Pigeon Fun Facts

Pigeons have the ability to see about 26 miles.

When fully feather, adult pigeons have around 10,000 feathers.

There are approximately 400 million pigeons in the world.

Source

Voted Best Canadian wholesaler for Bird Deterrent products ten years in a row.

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3. Pigeons will make a mess of your home and yard

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Pigeon Caught Flying Drugs Into Prison

Pigeons – Rock Dove

Description

Mating – Breeding Habits

Nesting Habits

Do Pigeons Reuse the Same Nest

Feeding Habits – What Pigeons Eat

Predators

Are Pigeons Smart Birds?

What is the Lifespan of Pigeons?

Pigeons in History

Pigeon Fun Facts

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