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Growth rate, size, and sex ratio of last-laid, last-hatched offspring in the tree swallow Tachycineta bicolor

L. S. Johnson, Auteur ; L. E. Wimmers, Auteur ; S. Campbell, Auteur ; L. Hamilton, Auteur

Dans Journal of Avian Biology (34(1) MAR 2003)

In tree swallows Tachycineta bicolor, last-laid eggs typically hatch one to two days after the other eggs in the clutch hatch, putting last-hatched offspring at a disadvantage when competing for food delivered by parents. We studied the biology [...]

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