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Carrion birds, such as crows and vultures, eat dead animals. As a whole, it's possible that they detect carrion by the smell or visually. Crows specifically are omnivorous and predatory in addition to being carrion scavengers. I suspect that they will try to eat anything that doesn't fight back, especially if they are hungry enough and there is exposed ...


3

I think the key is "his fragrant corpse." When an animal dies and begins to rot, a number of quite smelly chemicals are given off, including putrescine and cadaverine. Crows and other carrion birds like vultures are probably very sensitive to these compounds, rather like sharks are to the smell of blood.



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