The Center for Biological Diversity has called on U.S. Fish and Wildlife to protect the Bendire's thrasher amid report on ...

Some excited bird-watchers think they spotted an extremely rare little red bird in Pima County earlier this week. Birders believe they spotted a Red Warbler — a red bird endemic to the ...

Carotenoid deficiency is most likely the reason house finches in Phoenix are less red than their desert cousins ... great tits, small birds with bright-yellow, carotenoid-colored breasts, are ...