Most birds have distinct calls that tend to stay the same. It’s how birders can recognize a species without seeing it. But new research shows these tunes can change. Over the course of two decades, ...

I was out back early this morning, drinking coffee and recording the morning chorus of bird songs with Merlin, the Cornell Lab birding App. There is a feature in Merlin called Sound ID that listens to ...

Most birds in Teller County head south and to lower elevations during the harsh winter season, but some diehards hang tough through the cold and snow. The song sparrow is one of those hearty species ...

What a male song sparrow sings in each moment is dependent on what he sang 30 minutes ago and suggests that the birds don't have a 'bird brain,' but incredible memory and recall capacities. Any good ...