Brown-banded Antpitta
Grallaria milleri
The brown-banded antpitta is 13 to 18 cm (5.1 to 7.1 in) long and weighs about 50 to 55 g (1.8 to 1.9 oz). The sexes have the same plumage. Adults have whitish lores with black speckles. Their ear coverts are ochraceous brown. Their crown, nape, back, and uppertail coverts are deep rich raw umber and their rump slightly paler. Their tail can be more rufescent or slightly more greenish than their back. Their wings are generally similar to their tail with dusky brown primaries and raw umber coverts. Their throat is grayish white with tawny olive sides. Voice: The brown-banded antpitta's song is a "single upslurred uuueee"; it also makes a "3-note tu, tu-tu". Its call is a "single loud shrill note KEEEE" given in a series. The species sings at any time of the year, mostly during the morning, and typically from a low perch in dense undergrowth.
ID text from Wikipedia, CC BY-SA 4.0

Moustached Antpitta
Grallaria alleni
Grallaria antpittas are a "wonderful group of plump and round antbirds whose feathers are often fluffed up...they have stout bills very short tails". The moustached antpitta is 16.5 to 17 cm (6.5 to 6.7 in) long; two males weighed 64 and 77 g (2.3 and 2.7 oz). The sexes have the same plumage. Adults of the nominate subspecies have a light olive brown forecrown and a slate gray crown and nape with thin blackish edges on the feathers. They have white lores, olive brown ear coverts, and a wide white "moustache" with thin black streaks in it. Voice: The moustached antpitta's song is "a slightly ascending series of hollow notes that gradually become louder; higher pitched and slower paced than Scaled Antpitta's song" (which see here).
ID text from Wikipedia, CC BY-SA 4.0

Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Brown-banded Antpitta and Moustached Antpitta.