White-headed Woodhoopoe

An overall dark brown swallow with paler underparts. It has a square tail with a white spot on each tail feather, making a white speckled band of sorts. Young birds have paler underparts. Mostly seen flying in pairs or small flocks along cliffs, but sometimes also near tall buildings. Flight action generally slower than Barn Swallow’s, but can wheel and loop at quick speed. 

Generally rare (but locally fairly common in a few spots) hummingbird of humid forests just below treeline on the eastern slope of the Andes from NW Argentina to La Paz, Bolivia. Often feeds near treefalls and roadcuts, especially on bellflowers (Lobelioideae). Seemingly more common in southern half of range. Male’s white leg puffs and blue crown are distinctive. Female’s orange underparts combined with metallic blue undertail coverts also unique.

Average red-bellied trogon of subtropical forests. Male is iridescent green on breast, head, and back; female is brown. Namesake dark mask is usually obvious, especially on females. Nearly identical to Collared Trogon but very little overlap; Masked is almost always found at higher elevations. Where both are possible, look especially at tail pattern on males: large white tips on underside of tail feathers, otherwise dark with very fine white barring. On females, look for evenly barred undertail with large white tips combined with contrasting black face. Usually found singly or in pairs, perched quietly from the understory to the subcanopy. Listen for slow series of 3–6 descending whistles.