Acoustic systems are adapted to breeding ecologies: individual recognition in nesting penguins

In all species of penguins studied to date, the display call, or parental call, has been demonstrated experimentally to facilitate identification between mates and between chicks and parents. We investigated parent–chick recognition in two nesting species, the Ade´lie penguin, Pygoscelis adeliae, and the gentoo penguin, P. papua. Through playback experiments, we tested the capacity of […]