A Male White Bellbird (IMAGE)

University of Massachusetts Amherst

A Male White Bellbird

Caption

Now recognized as the loudest in the world, Amazon white bellbird calls have a sound pressure about three times that of screaming pihas, another Amazon species now demoted to the second loudest bird singer documented, say Jeff Podos of UMass Amherst and Mario Cohn-Haft at the Instituto Nacional de Pesquisas da Amazôni, Brazil.

Credit

Anselmo d'Affonseca, Instituto Nacional de Pesquisas da Amazonia

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