Pigeons help the environment mainly as seed dispersers, especially the fruit-eating species of tropical forests, and as food for predators higher up the food chain. Their environmental impact is often smaller than people assume: in most cities they live alongside native wildlife without major problems, although in some places feral pigeons compete with native birds or pass diseases to them.
1. They Help With Seed Dispersal
Everyone seems to be aware that the reducing number of bees has an impact on pollination across the globe, but pigeons also have a role in the natural order of things.
They aid seed dispersal across their various environments.
Seeds make up the bulk of a pigeon’s diet and they ingest a huge range of different seeds.
When they pass faeces in the different locations that they fly to, a few seeds survive the trip and can grow where they land, although seed-eating pigeons grind most of the seeds they eat in their muscular gizzard. Fruit-eating pigeons, such as fruit doves and imperial pigeons, swallow fruit whole and spread the seeds widely, which makes them important seed dispersers in tropical forests.
This helps to maintain and add variety to various areas on the pigeon’s flight path, and it’s worth mentioning that pigeon poop is a wonderful fertilizer for the ground and pigeon poop can be composted (opens in new tab).
2. Pigeons Are A Source Of Food For Predators
It might not be the thing to which pigeons want to contribute themselves, but there is no getting away from the fact that they act as a key food source in the animal kingdom!
Lots of breeds of raptors rely on pigeons to give them the sustenance that they need, and this happens all across the world.
It’s never a great fact to think about for pigeon lovers out there, but at the same time, we can’t look over the important role in the food chain and the circle of life that pigeons provide.
Abundant pigeons have also helped birds such as the Peregrine Falcon, which has recovered in the UK and now nests in many cities, where pigeons make up a large part of its diet.
Pigeons are a vital source of food for many predators throughout the world.
3. Pigeons May Help Keep Some Weeds in Check
Weeding is one of those gardening jobs that most humans hate doing, but pigeons do a little of it for us as part of their natural feeding behaviour.
Pigeons eat the seeds and leaves of many weeds, including thistles, which may help to keep some weeds in check.
Some thistles are classed as ‘noxious’ weeds, so anything that limits their spread is welcome.
4. Pigeons Clean Up Food Waste
There should be no need to say that humans are an untidy species – everyone is aware of the damage our litter bugging has done and is doing to the environment.
Pigeons might not be able to do anything about the plastic problem (opens in new tab) but they are effective street cleaners, happily eating the food that humans discard in town and city’s streets.
Pigeons will eat practically any food that we drop or throw away despite a burger or fish and chips being as unhealthy for them as it is for us.
We should mention that despite their huge numbers (and their human-perceived nuisance factor), pigeons usually cause less environmental harm than people expect.
In most cities they live alongside native wildlife without major problems, although in some places feral pigeons compete with native birds or pass diseases to them.
5. Other Benefits Of Pigeons
Let’s not forget that man has domesticated pigeons for thousands of years. They were invaluable in early communication and right up until World War II.
They had a major role in carrying messages and information in World War I and in the past they were even used to carry medical samples between hospitals.
Pigeons also bring many people a lot of joy.
Thousands of pigeon fanciers love the birds and keep them as pets and there are pigeon clubs and associations all around the world with a huge number of shows and exhibitions every year.
Add to this the number of owners of racing pigeons.
The value of this aspect of the pigeon should not be underestimated as a benefit.
Humans value many things that matter by attaching a price and when you hear that the world’s most expensive racing pigeon was sold in 2020 for €1.6m (around $1.9m) there’s no arguing that pigeons matter.
The Negative Environmental Impact Of Pigeons
So, those are the key positives of what pigeons can do for our environment, but what about the other end of the spectrum?
What about the negative impacts that pigeons have on their surroundings?
1. Building Damage
As pigeons have obviously become more comfortable with living in urban environments among human structures, they have adjusted to nesting both inside and outside of buildings.
While these buildings can provide a safe and sturdy place for them, pigeons can end up causing damage to the interior and exterior of these structures.
2. Toxic Droppings
We have mentioned that pigeon poop can be a great fertilizer for the earth, but when it comes to human contact, it can be a health risk.
Dried droppings can contain fungi and bacteria that cause illness if the dust is breathed in, so large build-ups should be cleaned with care.
Aside from this, the acidic nature of the droppings can also, over time, wear down things like soft stone and masonry.
Ultimately, there are good and bad factors in what pigeons do for our environment, but we tend to think that the good they can do in their seed dispersal and weed maintenance outweighs the bad.
Last updated 31 October 2026 · Facts