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Contact: Hilary Glover
hilary.glover@biomedcentral.com
44-020-319-22370
BioMed Central

Nestling Blue Tit

Caption: In choosing a mate both males and females rely on visual cues to determine which potential partner will supply the best genes, best nesting site, best territory, and best parenting skills.

Credit: Katharina Mahr

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Related news release: Better looking birds have more help at home with their chicks


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