Bay Antpitta

Grallaria antpittas are a "wonderful group of plump and round antbirds whose feathers are often fluffed up...they have stout bills [and] very short tails". The bay antpitta is 16 to 17 cm (6.3 to 6.7 in) long and weighs 65 to 77 g (2.3 to 2.7 oz). The sexes have the same plumage. Adults have a dusky brown or dark russet brown crown. They have a rufous or blackish lores. Their back, rump, wings, and tail are rufous chestnut. Their underparts are mostly rufous that is darker on the breast and paler on the belly; the center of their belly is whitish buff. Both sexes have a dark brown iris, a blue-gray bill, and blue-gray legs and feet.

The bay antpitta is found on the east side of the Peruvian Andes in Huánuco, Pasco, and Junín departments. It inhabits the understory of humid montane forest, often in areas where thick vegetation is regrowing such as in landslide scars, the edges of secondary forest, and abandoned slash-and-burn fields. In elevation it mostly ranges between 1,800 and 3,000 m (5,900 and 9,800 ft) though locally as low as 1,500 m (4,900 ft).

The bay antpitta's diet and foraging behavior have not been detailed but it is known to feed on insects and small snails. It is almost entirely terrestrial, where it runs and hops along the ground, usually in dense vegetation.