High above fields, highways and suburbs, dark wings often trace slow circles over the same patch of ground, a sight that has long signaled trouble to anyone watching from below. Those spiraling birds ...

Modern researchers know about the cuckoo’s cross-species brood parasitism – but one Roman emperor observed this more than 700 ...

Earlier this year, a group of researchers published a paper on the remarkable phenomenon of sex reversal in several ...

Birding is one of those hobbies that are all too easy to make fun of until you turn thirty. Then, suddenly and against your ...

The largest flying birds in the world have wingspans of up to 3.5m; discover the five biggest, plus where they live and what ...

That analysis considered not just rabies, but all human deaths related to the loss of vultures — including those from water ...