The planet’s birds make a lot of different sounds communicating a wide variety of messages. The petite Black-capped chickadee emits a high noise that tells predators to scram. Hungry Pileated ...

Birds make sounds to communicate, whether to find a potential mate, ward off predators, or just sing for pleasure. But the conditions that contribute to the immense diversity of the sounds they ...

Birds make sounds to communicate, whether to find a potential mate, ward off predators, or just sing for pleasure. But the conditions that contribute to the immense diversity of the sounds they ...