Coots count
Article Abstract:
American coots are able to count and discriminate between their own eggs and those of brood parasites. Behaviours ranging from burying the parasitic eggs, to moving them to the edges of the clutch result in reduction of the effect of parasitic eggs on the reproductive success of the host bird.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
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Egg recognition and counting reduce costs of avian conspecific brood parasitism
Article Abstract:
The visual cues by which American coots recognize eggs laid in their nests by brood parasites are explored. The article builds a case that the birds can count, and are able to reduce their clutch size to prevent the effects of brood parasitism.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
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Relative size in the mating game
Article Abstract:
A study of shorebirds can explain the strength of competition for mates regarding the size difference between males and females. Males of many animals compete in fights for mates, as such contests favor large body size.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2004
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