Reader Damon Williford sent some photos of an interspecific interaction between birds over food; I’ve numbered the photos to correspond to his text below:
Attached are a series of photos featuring competitive interaction between a Black Vulture (Coragyps atratus) and several Crested Caracaras (Caracara cheriway) in South Texas during January of this year. A pair of adult caracaras claimed the remains of what appeared to be a rabbit (1). They were driven off by a an adult Black Vulture (2). But before the vulture could enjoy its ill-gotten meal it was challenged by a juvenile caracara (3-7). The vulture won Round 1 but was being stalked by another juvenile caracara (8). Round 2 ended with the vulture being chased away by the second juvenile caracara (9-16). The juvenile was confronted by an adult and the adult managed to convince the juvenile to abandoned its hard-earned meal without the use of violence (17-19). This might be because a juvenile caracara has a lot more to fear from an adult of its own species than from an adult New World vulture.
19. The winner!!!