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1 September 2010 Feeding a Foreign Chick: a Case of a Mixed Brood of Two Tit Species
Toshitaka N. Suzuki, Yuko Tsuchiya
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Abstract

We report on a mixed brood of Great (Parus major) and Varied (Poecile varius) tits. The brood consisted of one Great Tit and five Varied Tits. Incubation and food provisioning to nestlings were by adult Varied Tits, but not by adult Great Tits. The foreign Great Tit nestling tended to receive more food than the average Varied Tit nestling. Provisioning of the foreign Great Tit by Varied Tits lasted even after fledging. We discuss the causes and outcomes of this rare phenomenon.

Toshitaka N. Suzuki and Yuko Tsuchiya "Feeding a Foreign Chick: a Case of a Mixed Brood of Two Tit Species," The Wilson Journal of Ornithology 122(3), 618-620, (1 September 2010). https://doi.org/10.1676/09-192.1
Received: 5 December 2009; Accepted: 1 March 2010; Published: 1 September 2010
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