The broken-wing display across birds and the conditions for its evolution

Clinton Francis, Léna De Framond & Henrik Brumm
The broken-wing display is a well-known and conspicuous deceptive signal used to protect birds’ broods against diurnal terrestrial predators. Although commonly associated with shorebirds, it remains unknown how common the behaviour is across birds and what forces are associated with the evolution of the display. Here, we use the broken-wing display as a paradigmatic example to study the evolution of a behaviour across Aves. We show that the display is widespread: it has been described...
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