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The male Yellow-headed Blackbird is impressive to see, but contrary to its elegant appearance, its song is a hoarse, harsh scraping. Yellow-headed Blackbirds nest in noisy colonies in big cattail marshes of the western and midwestern United States; when they are not nesting, they gather in flocks in open fields, often with other blackbirds. At some favored points in the southwestern United States in winter, they may be seen in flocks of thousands.

While the Red-winged Blackbird is abundant over most of the continent, the very similar Tricolored Blackbird has a very small range in the Pacific states. It differs in its highly social nesting: in a dense cattail marsh, nests may be packed in close together, only a foot or two apart. Some colonies may have over 100,000 nests, although such large concentrations seem to be growing scarcer in recent years, as the birds shift to smaller (but hopefully more) colonies.

In the west, the Bullock's Oriole is common in summer in forest edge, farmyards, leafy suburbs, isolated groves, and streamside woods, especially in cottonwood trees. For several years it was considered to belong to the same species as the eastern Baltimore Oriole (with the two combined under the name Northern Oriole), because the two often interbreed where their ranges come in contact on the western Great Plains. The habits of the two are similar.