Tawny-rumped Tyrannulet

Very small nightjar with an indistinct buffy throat. Ground color is variable between subspecies, with some paler and others darker. In flight, note the white wing stripes in both sexes. Males have two white patches on tail. Found in wooded rocky caatinga (dry scrubby forest), where it roosts on rock outcrops and boulders. The song is a short “wheeo.”

Attractive petrel with a black mask, largely gray above and white below, with a diagnostic dark breast band. Note the heavy dark bill. In flight, exhibits gray underwings and gray and dark brown M-pattern on the back. The rare dark morph has dark underparts, but still retains the distinctive complete breast band, which is the most useful mark separating this species from Fea’s and Zino’s Petrels.  Usually encountered well offshore, in towering roller-coaster flights; sometimes follows boats.

Medium-sized hummingbird of oak and pine-oak woodlands and adjacent shrubby clearings; also local in lowland pine savannas. Sexes look alike and often look rather dull overall, despite the name. Note the whitish throat and breast offset by a dusky vest, and the dusky brownish rump and tail. Crown and sides of head are blue (rarely catching the light), with a white spot behind the eye and some red at base of bill.