Chestnut-bellied Tit

Large, brownish bird with a small gray head and massive legs and feet. Forages on the ground in coastal forests in the Nicobar Islands. Builds a large mound for a nest, from where the newly-hatched chicks dig themselves out and become immediately independent. Said to sing when it is dark, giving out a series of low-pitched wails which then reach a crescendo, culminating in a loud, metallic clattering sound.

Rotund, terrestrial bird of tepui highland forests. Rich brown above and pale gray-brown below, with a white spot behind the eye, long legs, and virtually no tail. Found at middle and high elevations; most common above 800 m. Always observed on or close to ground. Forages in leaf litter and among mossy rocks for insects. Does not usually follow mixed-species flocks. Far more often heard than seen, but seems much less shy than many other antpittas; may run along ground to within a few meters of observers in response to playback or imitation of song. Song is 6–12 hollow whistles, the series rising slightly in pitch, similar to song of Thrush-like Antpitta but higher-pitched and often longer in duration. Alarm call is a melodious, hollow chuckle, virtually identical to same call of Thrush-like Antpitta; the two species do not overlap in elevational range.

A large pigeon with a mostly gray body, green wings, and a distinctive and diagnostic black fleshy knob above the bill. Found across most habitats, but most common in undisturbed forest. Voice is a series of raspy growling notes becoming gradually shorter, “grroww… grroww grow grow-gr-gr.”