Every spring, migratory birds arrive in the continental United States from south and central America to breed. But precisely when they arrive each spring varies from year to year. In a NASA-led study ...

Research looks at the evolutionary pathways to differences in bird plumage patterns between males and females -- and concludes that birds are able to adapt their appearance with remarkable ease.

For some birds, recognizing their own eggs can be a matter of life or death. In a new study, scientists have shown that many birds affected by the parasitic Common Cuckoo -- which lays its lethal ...

Until now the patterning of pigmentation in bird feathers has been poorly understood, but the patterns and colors are known to be important for attracting mates, protecting from predators, and they ...

For some birds, recognising their own eggs can be a matter of life or death. Scientists have used imafe recognition technology to show that birds defending their nests against the Common Cuckoo - ...

For some birds, recognising their own eggs can be a matter of life or death. In a new study, scientists have shown that many birds affected by the parasitic Common Cuckoo - which lays its lethal ...