They watch carefully as other birds build their nests, then swoop in to lay their own eggs. But before they leave, cuckoos often remove or destroy one or more of the host’s eggs, reducing ...

The benefit of mobbing is that dozens of birds can work together to drive a predator from their territory. This can help protect the young, but it can also leave nests vulnerable to attack. While the ...

They have started using the spikes in their nests to keep other birds away. Birds in Europe are getting their revenge on human-made anti-bird spikes by using them as weapons to protect their young.

For that reason, I generally don’t consider them homes. But the analogy is apt, if only to convey the uniqueness of their ...

A lining of white plastic in a black kite bird's nest may warn other birds to back off. Skip ... Sergio and his team added extra white plastic to the birds' nests. They found that attacks ...

Upon closer examination, that nest was found to contain approximately 1,500 anti-bird spikes. They had been pulled by the birds, from about 50 meters (164 ft) of the hospital's eaves.

Strips of sharp metal pins are meant to keep birds away from buildings. Some birds are stealing them to build their nests. A nest made from metal pins and other materials collected by magpies ...

A wasp’s bites may be as bad as its sting. A paper wasp (Agelaia pallipes) has been caught on camera attacking and killing a baby bird in its nest, researchers report July 13 in Ethology. The ...

Cuckoo birds aren’t just the inspiration for intricate clocks. They’re also shameless parasites. Brood parasites, that is. Many species of cuckoos have been known to leave their eggs in other ...

The timing of these attacking birds syncs up with when they are most protective of their nests, or young within. A few other classic examples in Maine come from the woods and the beach: American ...