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XX 08MY8381 Male Yellow-headed blackbird (Xanthocephalus xanthocephalus). The male Yellow-headed Blackbird defends a small territory of prime nesting reeds. He may attract up to eight females to nest within his area. The male helps feed nestlings, but usually only in the first nest established in his territory. The other females have to feed their young all by themselves.

XX 08MY8360 Male Yellow-headed blackbird (Xanthocephalus xanthocephalus). The Yellow-headed Blackbird is strongly aggressive toward Marsh Wrens, probably because of the egg-destroying habits of the wrens.

XX 08MY8386 Male Yellow-headed blackbird (Xanthocephalus xanthocephalus).

XX 08MY8357 Male Yellow-headed blackbird (Xanthocephalus xanthocephalus).

XX 08MY8349 Male Yellow-headed blackbird (Xanthocephalus xanthocephalus). Song a few musical notes followed by harsh, scratchy buzzing, like very large, very rusty metal hinges squealing