- Molothrus ater (Brown-headed Cowbird)
Profile of the species that is sited as a cause in the general decrease in numbers of songbirds in North America due to its parasitic nesting practices.
animaldiversity.ummz.umich.edu/site/accounts/information/Molothrus_ater.htm...
- Cowbirds and Conservation
Substantial amount of information provided by the Audubon Society.
www.audubon.org/bird/research
- Brown-headed Cowbirds: From Buffalo Birds to Modern Scourge
Fact sheet for the brood parasite that lays its eggs in the nests of other birds, whereby the "hosts" usually raise cowbird young at the expense of their own eggs or young.
nationalzoo.si.edu/conservationandscience/migratorybirds/fact_sheets/defaul...
- Deciphering Cowbirds' Complex Song and Dance
Article from National Geographic News.
news.nationalgeographic.com/news/2004/01/0122_040122_cowbirdsongdance.html#...
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