Sykes's Nightjar

A bulbul-sized olive-brown bird that sports a diagnostic all-red bill and a red eye surrounded by a fleshy yellow wattle. The juvenile lacks the bright bill and eye coloration. Small groups occur in savanna and farmland, where they require large wild ungulates and domestic stock to forage on; they clamber agilely over host mammals, gleaning ticks, mites, and other ectoparasites, and occasionally drinking host blood. As they fly between large mammals, they give a distinctive “tsik-tsik” call. The similar Yellow-billed Oxpecker differs from Red-billed Oxpecker by having a yellow bill base and pale rump and lacking an eye-wattle.

Scarce antbird of lowland rainforest understory in eastern Ecuador and northeastern Peru. Both sexes have white throat and eyebrow. Male is otherwise all gray, and female is brown with tan scaling on upperparts and buff spots in the tail. Male is similar to White-throated Antbird, but lacks white barring in tail; also note range and voice. Typically found alone or in pairs, often around swarms of marauding army ants. Song is a fast, decelerating series of emphatic notes.

Small bird of foothill forests. Males have a pale buffy body with black head, wings, and tail; females are much more drab, with a grayish-green head, pale bluish-green back, and yellowish underparts. In good light, both sexes show blue in flight feathers. Found in foothill forests and edge habitats, dry valleys, and in humid forest around the bases of the tepuis. Usually observed at fruiting trees, often in pairs or small family groups, from lower levels into canopy. Calls are indistinct chips and twitters. Plumage pattern of male is distinctive; females are more confusing but are seldom seen without males, facilitating identification; note contrasting gray head and (at close range) blue in wings.