Antbutterflies: butterflies that follow army ants to feed on antbird droppings.
Females of three species of tropical rain forest ithomiine butterflies orient to swarms of army ants (Eciton burchelli) and feed on bird droppings found there. The antbirds associated with swarm raids of these ants provide a predictable source of droppings, an otherwise sparsely distributed resource.
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Andrews
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