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The black-headed grosbeak (Pheucticus melanocephalus) is a medium-sized, seed-eating bird in the family Cardinalidae. It is sometimes considered conspecific with the rose-breasted grosbeak ( P. ludovicianus ) with which it hybridizes on the American Great Plains .
The adult black-faced grosbeak is 16.5 cm long, weighs 36 g, and has a heavy, mainly black, bill. It has a black face, yellow head, neck and breast, and olive back, wings and tail. The rump and belly are grey. Immatures are duller and have duskier face markings.
Typically, fewer than 7% of grosbeak nests have cowbird eggs per one study. [38] Per the U.S. Bird Banding Laboratory, as of 1997, rose-breasted grosbeaks recovered when dead have largely collided with objects, including buildings and cars (17.2%) or had been shot (10%; mostly before 1960), 3.6% of the fatalities were caught by cats , 0.8% ...
The evening and pine grosbeaks are finches, the same family as a goldfinch, whereas the rose-breasted grosbeak is in the cardinal family. The common name they share, “grosbeak,” was given long ...
The black-backed grosbeak is approximately 22 cm (8.7 in) long and weighs 43.8 to 66.2 grams (1.54 to 2.34 oz). All of the subspecies except P. a. crissalis are very similar. The males' upperparts are black with a yellow shoulder patch; the closed wings show white patches.
The glaucous-blue grosbeak nests in northeastern Argentina, southeastern Brazil, and much of Uruguay. During the austral winter, some move into southeastern Paraguay and further north in Brazil. It inhabits low, somewhat dense, vegetation such as along forest edges, on river islands, in marshes, and in secondary forest .
The following is a list of grosbeak species, arranged in groups of closely related genera. These genera are more closely related to smaller-billed birds than to other grosbeaks. Exceptions are the three genera of "typical grosbeak finches", which form a group of closest living relatives and might thus be considered the "true" grosbeaks.
The nest is a thin cup constructed on a bulky twig base 1–3 m (3.3–9.8 ft) up in a small tree or amongst vines. The female lays two brown-spotted pale blue eggs between March and May. The adult black-thighed grosbeak is 20 cm (7.9 in) long, weighs 70 g (2.5 oz), and has a massive grey bill.