How do Black Vultures sometimes locate food sources using the actions of other birds?
Answer
They follow Turkey Vultures to potential carcasses.
Black Vultures engage in a form of behavioral commensalism by utilizing the foraging success of Turkey Vultures. Because Turkey Vultures are highly effective at locating carrion, Black Vultures often monitor their flight paths. By tracking a Turkey Vulture, the Black Vulture can successfully identify a food source, such as a carcass, that it might not have otherwise located on its own. This interaction means that the presence of one species often indicates the likely arrival or presence of the other near food sources or communal roosts.

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