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The blue grosbeak (Passerina caerulea), is a medium-sized North American passerine bird in the cardinal family Cardinalidae. It is mainly migratory, wintering in Central America and breeding in northern Mexico and the southern United States.
The Blue Grosbeak is a stocky songbird with a very large, triangular bill that seems to cover the entire front of its face, from throat to forehead. Relative Size Larger than an Indigo Bunting; slightly smaller than a Brown-headed Cowbird.
Beefy, big-headed, large-billed bunting. Male is deep cobalt blue with rufous wingbars. Females are warm brown with rufous or buffy wingbars. Always look for enormous bill to separate from other buntings; also note unstreaked underparts and slightly longer tail. Swishes tail like other buntings.
A large, vibrantly blue bunting with an enormous silver bill and chestnut wingbars, the male Blue Grosbeak sings a rich, warbling song from trees and roadside wires. He and his cinnamon-colored mate often raise two broods of nestlings in a single breeding season.
The husky warbling song of the Blue Grosbeak is a common sound in summer around thickets and hedgerows in the southern states. Often the bird hides in those thickets; sometimes it perches up in the open, looking like an overgrown Indigo Bunting, flicking and spreading its tail in a nervous action.
4 Μαρ 2020 · Blue Grosbeak (Passerina caerulea), version 1.0. In Birds of the World (A. F. Poole, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.blugrb1.01.
Originally a nester in the southern and central United States, Mexico, and western Central America, the Blue Grosbeak has been expanding its breeding range northward. The species now nests as far north as northern New Jersey and Illinois, and even south-central North Dakota, for reasons not entirely understood.
