June 15 (UPI) --To find nectar-rich flowers and spot the iridescent signatures of would-be mates, hummingbirds must be able to see and recognize a wide variety of colors. According to a new study, ...
From hummingbirds to cardinals, bird feeders to bird flu — here are more stories about the winged creatures we love to see in our backyards (and beyond). Eleven hummingbird species have been spotted ...