Add Yahoo as a preferred source to see more of our stories on Google. Mountain chickadees are unusual in having more complex calls than songs. Vladimir Pravosudov I approach a flock of mountain ...

From insects to great apes, by way of birds and fish, animals communicate through an extraordinary variety of sounds. While ...

Light pollution is causing birds around the world to sing for longer each day, prolonging their vocalizations on average by 50 minutes, according to a new study by Brent Pease and Neil Gilbert. In ...

I approach a flock of mountain chickadees feasting on pine nuts. A cacophony of sounds, coming from the many different bird species that rely on the Sierra Nevada's diverse pine cone crop, fill the ...