ANTIPREDATION VALUE OF COLONIAL NESTING IN YELLOW-HEADED BLACKBIRDS

@inproceedings{Picman2002ANTIPREDATIONVO,
  title={ANTIPREDATION VALUE OF COLONIAL NESTING IN YELLOW-HEADED BLACKBIRDS},
  author={Jaroslav Picman and Stanislav. Pribil and Andre Isabelle},
  year={2002}
}
Abstract Yellow-headed Blackbirds (Xanthocephalus xanthocephalus) in Manitoba breed in dense colonies in cattail marshes. Their reproductive success is affected mainly by predation. The most important predator on blackbird nests is the Marsh Wren (Cistothorus palustris), which breaks blackbird eggs and kills small nestlings. We examined whether colonial nesting in Yellow-headed Blackbirds may represent an adaptation to reduce Marsh Wren predation. Marsh Wren predation may be reduced by (1… 

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