Incubation behavior, brood patch formation and obligate brood reduction in Fiordland crested penguins


The first-laid eggs of Eudyptes penguins are much smaller than second eggs, generally hatch later, and experience greater mortality, features that characterize a brood reduction system unlike that of any other avian group. Hypotheses that (1) first-egg mortality is incidental to aggressive behavior by nesting birds and (2) hatching asynchrony is created by… (More)
DOI: 10.1007/BF00170608

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