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 ...

Birds separated by vast geographic distances and millions of years of evolution share a remarkably similar learned vocal warning to identify parasitic enemies near their nests, an international team ...

Bird song is beautiful and fascinating. I love hearing the first songs of returning lazuli buntings, western tanagers and Bullock’s orioles this time of year. And it’s fun to chase down some mystery ...