Przevalski's Partridge

Striking warbler with vastly different male and female plumages. Males are unique deep blue above with black face and sides and white belly. Females are plain brownish-olive with dingy buffy underparts and subtle face pattern. Always look for small white patch on the wing, lacking only on the dullest immature females. Breeds in the understory of mixed forests, favoring hills with dense vegetation. Found in nearly any wooded or shrubby habitat during migration. Winters primarily in the Caribbean. Listen for lazy buzzy song, usually a series of notes with a final long buzz.

Small swift with a square-tipped tail, broad outer wings and sharply-demarcated white rump. White on the rump extends to the sides and is visible from below. Note the obvious contrasting white throat. Superficially similar to house-martins, but lacks a white belly. Breeds both in natural cliff settings and in urban areas where it nests on buildings. Very vocal, particularly near the nest, giving a constant descending trill.

Ashy gray flycatcher with a strong white eyebrow that perches upright on the ground. Found in high-elevation grasslands and pastures. Larger size and more upright posture give it a taller appearance than the similar Cinereous Ground-Tyrant; the long white eyebrow that extends to or past the eye is also a good distinguishing feature (it is much shorter or absent in Cinereous). Does not have a crown patch as many other ground-tyrants do.