Researchers have found that a tropical species of hummingbird called a black jacobin makes vocal sounds with an unusually high-frequency pitch that falls outside birds' normal hearing range. It's not ...

The Banded Ground Cocoo (Neomorphus radiolosus, left) and the Purple Chested Hummingbird (Polyerata rosenbergi) are among the birds recorded in tropical reforestation plots in Ecuador. Tropical ...

The small and colorful manakin has perplexed scientists for more than century. New research shows how this strange bird that fascinated Charles Darwin makes sound during courtship — not with song, but ...

Dan Stowell is a co-founder and shareholder of Warblr Ltd. He receives funding from the UK Engineering and Physical Sciences Research Council for his research on bird sounds. The sound of birds is ...