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1 December 2005 Bare-necked Umbrellabird (Cephalopterus glabricollis) Foraging at an Unusually Large Assemblage of Army Ant-following Birds
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Abstract

I observed a juvenile male Bare-necked Umbrellabird (Cephalopterus glabricollis) forage on arthropods flushed by a large swarm of the army ant Eciton burchellii in the Caribbean foothills of Costa Rica. Apparently, this is the first report of this species attending an army ant swarm. At least 60 birds of eight different species were foraging at that swarm, the largest assemblage of army ant-following birds reported in the Neotropics.

Johel Chaves-Campos "Bare-necked Umbrellabird (Cephalopterus glabricollis) Foraging at an Unusually Large Assemblage of Army Ant-following Birds," The Wilson Bulletin 117(4), (1 December 2005). https://doi.org/10.1676/04-101.1
Received: 13 October 2004; Accepted: 1 July 2005; Published: 1 December 2005
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