blackbird

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The Columbia Encyclopedia, Sixth Edition | 2008 | The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press. (Hide copyright information) Copyright

blackbird common name in North America of a perching bird allied to the bobolink, the meadow lark, the oriole, and the grackle and belonging to the family Icteridae. The European blackbird, Turdus merula, is a thrush. The blackbird is possibly the most numerous N America land bird. The red-winged blackbird of E North America is a familiar sight, its scarlet shoulder patches conspicuous among the tall grasses of the marshes and wet meadows where it nests. It eats grain, insects, and weed seeds. Another common species is the yellow-headed blackbird, Xanthocephalus xanthocephalus. Except during the breeding season, blackbirds usually travel in flocks. The yellow-headed, the tricolored red-winged, and brewer blackbirds are found in the West. The rusty blackbird, glossy blue-black in summer when the brown edging of its winter feathers has worn off, winters in the United States. Many members of the family are polygamous, although the incidence of polygamous behavior varies from population to population. For example, in the brewer blackbird, the male becomes polygamous only when there are more females than males; when the balance is even, monogamy is the rule. The female blackbird usually builds the nest, which consists of a cup-shaped structure made of grasses. Flocks of blackbirds may be as large as 5 million birds, and they often do serious crop damage when foraging for food. However, the birds are invaluable because of the insects they consume. Blackbirds are classified in the phylum Chordata , subphylum Vertebrata, class Aves, order Passeriformes, family Icteridae.

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blackbird

The Oxford Dictionary of Phrase and Fable | 2006 | | © The Oxford Dictionary of Phrase and Fable 2006, originally published by Oxford University Press 2006. (Hide copyright information) Copyright

blackbird Songbird of the thrush family, common in gardens and woodland throughout most of Europe, the Near East, Australia, and New Zealand. The male has jet-black plumage and a bright orange bill. The female is brown, with a brown bill. The blackbird feeds on earthworms and other invertebrates. Length: to 25cm (10in). Species Turdus merula.

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"blackbird." World Encyclopedia. 2005. Encyclopedia.com. 24 Dec. 2009 <http://www.encyclopedia.com>.

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