Warmer nights prompt birds to lay eggs earlier

As climate change continues to cause temperatures to rise, the breeding patterns of birds such as blue tits are being altered as evenings in spring get warmer, researchers say.

Small birds discern threat level of enemies

Chickadees and titmice don't just see that another bird is dangerous. They can also differentiate species and tell just how much of a threat they are.

White cheeks are more titillating

Male blue tits with white cheeks are healthier and more likely to mate with higher quality partners than their counterparts with duller cheek feathers. Having purer white cheeks also indicates that a blue tit was better able ...

Caterpillars key to urban blue tits' low breeding

Many animal species suffer reduced reproductive success in urban habitats, despite wide-spread supplementation of breeding and feeding opportunities. In some years, the breeding success of city birds is devastatingly low.

page 1 from 3