About Spizella pusilla (A.Wilson, 1810)
Adults of Spizella pusilla have brown upperparts, a buffy breast, a white belly, two whitish wing bars, and a dark-brown forked tail. They have a grey face, a rusty crown, a white eye ring, a pink bill, and rusty markings behind the eye. This species has both grey and rufous colour variants. Males and females look very similar, though males are slightly larger than females. Their breeding habitat consists of brushy, shrubby fields across eastern North America. Their nest is an open cup structure placed on the ground under a clump of grass, or inside a small thicket. These birds often have more than one brood per breeding season; they build a new nest for each brood, and each new nest is built higher off the ground as the season progresses and leaves grow in. Eggs are laid in May or June; they are pale bluish white, speckled and blotched with yellowish brown and grayish purple. Individuals in the southern parts of the species' range are permanent residents. Birds from northern parts of the range migrate to the southern United States and Mexico.
