White-winged Lark

Large black cockatoo with tall rounded crest. Mostly black plumage with red or orange panels on the tail. Female has yellow spots and barring on the chest. Plumage and bill size vary according to subspecies. Often feeds on the ground. Typically occurs in groups or large flocks. Note loud calls from large noisy flocks.

Small, cryptically patterned, yellow-eyed owl of tropical lowland forest from Mexico to Panama. Tends to stay well hidden in the understory. Cannot be identified readily by sight, but it is the only screech-owl throughout most of its range and within its habitat. Song is a purring trill that can easily be mistaken for the purring of a toad or insect. Plumage varies from grayish brown overall to reddish.

An unusual warbler with a restricted range in the central Tanzanian mountains. Mostly gray, darker on the back, with a rich rufous head and breast. Females are duller. A shy and skulking bird of the understory of montane forest. Usually found in pairs. Somewhat similar to African Tailorbird and Chapin’s Apalis, but chunkier, with more extensive rufous on the head and breast. Normally detected by voice: the male sings a well-spaced series of long, pure whistles, sometimes accompanied in a duet by the female, who gives lower whistles in simple patterns.