Blue GrosbeakPasserina caerulea
6-7 1/2" (15-19 cm). Slightly larger than a House Sparrow. Male dark blue with 2 chestnut wing bars and a stout, dark bill. Female dark buff-brown with 2 buff wing bars. Indigo Bunting similar, but is smaller, lacks wing bars.
Sweet, jumbled warble. Also a metallic klink.
pit calls & female courtship notes
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Brushy moist pastures and roadside thickets.
Breeds from California, Colorado, Missouri, Illinois, and New Jersey southward. Winters in tropics.
After breeding, small flocks of Blue Grosbeaks feed together or mix with other seed-eating birds such as sparrows. They also search out insects, especially grasshoppers, that live in the grassy vegetation of open fields.
3 or 4 pale blue eggs in a loose cup of grass, weed stems, and leaves concealed in a clump of weeds.