If you have a bird feeder in the continental United States, you have almost certainly been visited by house finches. On both sides of the Mississippi their hungry flocks coat feeders like displays of ...

A highly endangered rainbow-colored Australian finch is breaking all the rules when it comes to avian evolution, according to new research published today by scientists from CU Boulder, the Cornell ...

For a reddish-beaked bird called the zebra finch, sexiness is color-coded. Males have beaks that range from light orange to dark red. But to females, a male's colored bill may simply be hot, or not, ...