Under these drastically changing conditions, the struggle to survive favored the larger birds with deep, strong beaks for opening the hard seeds. Smaller finches with less-powerful beaks perished.

I spotted this rook with a very unusual beak in Galway city lately. Despite the unusual shape it seemed very healthy and was ...

Researchers sequenced the DNA of Cuban blue-headed quail dove, expecting clear origins. Instead, they found it has no close relatives.