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Host provisioning behavior favors mimetic begging calls in a brood-parasitic cowbird
- Ursino, Cynthia A, Gloag, Ros, Reboreda, Juan C, De Mársico, María C
- Behavioral ecology 2018 v.29 no.2 pp. 328-332
- Molothrus bonariensis, nestlings, nests, parasites
- Brood-parasitic screaming cowbird nestlings manipulate host parent care via a begging call structure that matches that of the host’s own young. Using playback of calls at nests, we investigated the role of begging call structure in stimulating parental provisioning by a host (baywing) to 2 brood parasites. Baywings provisioned more in response to screaming cowbird calls, which closely match those of its own young, than to shiny cowbird calls, which do not.