Acoustic convergence between two nocturnal burrowing seabirds- experiments with a penguin Eudyptuh minor and a shearwater Puffinus tenuirostris
The evolution of acoustic signals is influenced by environmental constraints. We studied two sympatric but unrelated seabirds: the Little Penguin Eudyptula minor and Short-tailed Shearwater Puffinus tenuirostris, to examine the degree to which similarities in their ecology had led to convergence in their calls. Both species nest in burrows in Southern Australia and, at night, […]