Feral pigeon: flying rat or urban hero?

Some of us think the feral pigeon is a pest, but Steve Harris is smitten by this tough, adaptable and really rather useful bird.


Feral pigeon: flying rat or urban hero? article spread

Some of us think the feral pigeon is a pest, but Steve Harris is smitten by this tough, adaptable and really rather useful bird.

It was the satirist Tom Lehrer who started the rot in 1959 with his song Poisoning Pigeons in the Park, which explained that it takes only a smidgen of strychnine and “it’s not against any religion to want to dispose of a pigeon” (though I doubt that many Buddhists or Jains would agree).

However, Woody Allen delivered the coup de grâce in his 1980 film Stardust Memories, when he referred to feral pigeons as “rats with wings”.

The term had first appeared in 1966 in an article in The New York Times, but Allen’s film reached a much wider audience. It was the final nail in the coffin for these birds – what could be more damning than to be on a par with rats?
Ever since, feral pigeons have been one of the Disgusting Three, together with North American grey squirrels (‘tree rats’) and rats themselves. Their fall from grace was dramatic and, amazingly, took just a couple of decades.
Wild origins
The rock pigeon Columba livia was the wild ancestor of the feral pigeon and the first bird to be domesticated, in the Middle East some 6,000 years ago. Since then its contribution to human wellbeing has been astonishing.
Until agricultural advances in quite recent times, a dovecote, rabbit warren and carp pond were the three essentials to provide fresh meat throughout the year in Europe. In addition to food, pigeons produced valuable guano so rich in nutrients that one load of it was worth 10 from any other species. In many countries, pigeon dung actually played a key part in agricultural development.
It might seem improbable that the rock pigeon, a relatively uncommon species of remote cliffs, was the first bird we domesticated. But this process did not involve capture and selective breeding – merely the provision of an alternative place to nest, usually a dovecote with rows of ledges or clay pots along its internal walls. Some designs could accommodate several thousand sitting females.
The pigeons themselves were given little food, generally flying off to forage elsewhere. Despite requiring minimal attention, each pair typically produced about 10 squabs a year. Pigeons were thus the perfect source of protein.
Darwin loved pigeons
The reliance on pigeons for food declined when it became clear that chickens were more suited to mass production. But the interest in breeding them remained: much of the first chapter of On The Origin of Species is devoted to pigeons, where Darwin describes the many breeds that can be created artificially.
Today, though, the pastimes of rearing and racing pigeons are waning in popularity. Both hobbies require a great deal of patience and dedication – commodities in short supply in the modern world.
Though pigeons were still an important food source in the 1800s, they were being stolen from lofts in large numbers to supply the newly fashionable sport of pigeon shooting: they were used as live targets in competitions.
The Hurlingham Club in London was founded in 1869 expressly for pigeon shooting. When the practice was made illegal in 1921, clay pigeon shooting was invented.
Apart from supplying us with food, fertiliser and fun, pigeons have also played a useful role in medicine. Prolactin, the hormone responsible for milk production in mammals, was first isolated in 1933 in pigeons; the same hormone stimulates the male and female birds to secrete ‘milk’ from their crops to feed their young.
Pigeon post
But pigeons are probably most famous for their ability to find their way home and deliver messages. This was first exploited 3,000 years ago, and by the fifth century BC Syria and Persia had widespread networks of message-carrying pigeons.
In 1850, Paul Julius Reuter’s fledgling news service used homing pigeons to fly the 120km between Aachen and Brussels, thereby laying the foundations for a global news agency, and the world’s first ‘airmail’ stamps were issued for the Great Barrier Pigeon-Gram Service.
The birds’ homing ability was harnessed in the two world wars: in the early 1940s, the American Signal Pigeon Corps consisted of 3,150 soldiers and 54,000 birds. Some 90 per cent of the messages got through. And these avian secret agents saved countless lives, too – of 54 Dickin Medals (the animal’s VC) awarded in World War II, 32 went to pigeons.
Pigeon power
Even now, homing pigeons remain a useful means of communication in remote areas. The Police Pigeon Service in Orissa, India, was retired only in 2002.
We are all beguiled by the internet, yet in 2009, as part of a PR stunt, a pigeon carried a 4GB memory stick 80km in South Africa; the country’s biggest internet service provider managed to transfer just 4 per cent of the data on the stick in the same time. Perhaps it’s hardly surprising that the Taliban banned people from keeping or using homing pigeons in Afghanistan.
Amazingly, despite decades of research, we are still not sure how pigeons find their way home over terrain they have never seen before, and with such apparent ease. Partly this confusion is because different breeds appear to rely on different cues.
The consensus is that pigeons use the sun and/or the Earth’s magnetic field on long journeys, with visual cues becoming important near their loft, though recent studies suggest that they may also use odours. Not bad for birds with very small brains.
Urban outcasts
The list goes on and on: the feral pigeon has contributed to civilisation in more ways than any other species of bird. So how – and, perhaps more importantly, why – has it become such a pariah?
The fundamental reason is that modern technology has rapidly reduced our reliance on pigeons. All that most people see today are the flocks of feral birds found in cities on every continent except Antarctica, the most obvious surviving trace of the close association between people and pigeons spanning several millennia.
It’s no wonder that feral pigeons thrive in urban areas. Buildings are perfect nest sites for these exiles, mimicking the windswept cliffs used by their ancestors. There can be few more stirring sights than masses of pigeons swooping above our city streets, occasionally with peregrines in hot pursuit.
Tourist attraction
So it is difficult to see why feral pigeons are now so widely reviled. After all, they’re among the few birds that the average city-dweller sees regularly.
Lots of people enjoy their interactions with these charming birds, which have long drawn the crowds in tourist hotspots such as London’s Trafalgar Square and Venice’s Piazza San Marco.
And let’s not forget that feral pigeons are some of the most beautiful birds you could hope to see. Their plumage has a multitude of different colours, including metallic greens, bronzes and purples on the neck, as well as exquisite wing patterns.
Interestingly, most feral animals quickly revert to the appearance of their wild ancestors. All British mink, for instance, are now the same shade of brown as their wild relatives in North America, even though the original escapees from fur farms had a plethora of coat colours bred for the fur trade.
We don’t know why pigeons are the only feral animals to have retained the varied coloration of their domesticated ancestors.
Problem birds
It is often said that feral pigeons are a real nuisance, but what exactly are the problems? The standard gripe is that there are too many of them and therefore they need to be controlled. It’s a familiar refrain. The accusation is also levelled at rats, magpies, crows, squirrels, foxes, badgers and deer, to name but a few so-called ‘pests’.


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