Rejection of Artificial Parasite Eggs by Gray Kingbirds in the Bahamas | Zendy

Michael E. Baltz | Zendy; Dirk E. Burhans | Zendy

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Rejection of Artificial Parasite Eggs by Gray Kingbirds in the Bahamas

Author(s) -

Michael E. Baltz,

Dirk E. Burhans

Publication year - 1998

Publication title -

ornithological applications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.874

H-Index - 78

eISSN - 1938-5129

pISSN - 0010-5422

DOI - 10.2307/1369727

Subject(s) - gray (unit) , cowbird , biology , parasite hosting , zoology , ecology , brood parasite , host (biology) , parasitism , medicine , computer science , radiology , world wide web

We added artificial Shiny Cowbird (Mol- othrus bonariensis) eggs to Gray Kingbird (Tyrannus dominicensis) nests in the Bahamas, where Shiny Cowbirds were first recorded in 1993. Gray Kingbirds ejected 85% of artificial eggs within 48 hr of addition. Based upon the short time of contact between the two species, we suggest that egg ejection by Gray King- birds in the Bahamas is retention of ejection behavior from ancestral populations.

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