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논문 기본 정보

자료유형
학술저널
저자정보
Yu-Seong Choi (National Institute of Biological Resources) Jin-Young Park (National Institute of Environmental Research) Hyung-Kyu Nam (Kyung Hee University) Young-Min Moon (Kyung Hee University) Kwan-Mok Kim (Kyung Hee University) Gilsang Jeong (Ewha Womans University)
저널정보
한국조류학회 한국조류학회지 한국조류학회지 第20卷 第2號
발행연도
2013.9
수록면
125 - 128 (4page)

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초록· 키워드

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On June 16, 2013, a nest containing three Intermediate Egret (Egretta intermedia) chicks and one Cattle Egret (Bubulcus ibis) chick was found at a mixed-species heronry (N36°52"15", E127°02"10") in Asan, Chungcheongnam-do, Korea. Based on body size and the development of the primary wing feathers, the three intermediate egret chicks were estimated to be more than 15 days old, and the Cattle Egret chick between 10 and 12 days old. The tree containing the nest was located on the edge of the colony, and contained only this nest. There were no other Cattle Egret nests in the immediate vicinity. This fact precludes the possibility that the Cattle Egret egg dropped from another nest, or that a Cattle Egret chick walked from a neighboring nest. In addition, the Cattle Egret chick had successfully eaten prey with the Intermediate Egret chicks. This means that the Intermediate Egret parents fed the Cattle Egret chick without rejecting it. Based on these observations, we suggest that this is a case of brood parasitism of an Intermediate Egret nest by a Cattle Egret. This is the first report of brood parasitism in a Korean egret population.

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