Cinereous Tinamou
Crypturellus cinereus
The cinereous tinamou is a shy and secretive bird. It is approximately 29–32 cm (11–13 in) in length, and the male bird weighs around 435 grams (15.3 oz) and the female of the species weighs 549–602 grams (19.4–21.2 oz). It is colored similar to the Berlepsch's tinamou in that it is dark brown to sooty brown or brownish black in coloration. It tends to be slightly more brown than the Berlepsch's tinamou. It is recognized by its smoky-grey with reddish-brown crown and nape. The feather shafts on side of its head are white, which shows through on occasion.
ID text from Wikipedia, CC BY-SA 4.0

Tataupa Tinamou
Crypturellus tataupa
The tataupa tinamou is approximately 25 cm (9.8 in) in length. Its upper parts are dark brown, with a dark brown crown, a pale grey throat. It has darker grey on the sides of its head, neck, and breast, with a buff belly. Its bill and legs are purplish red.
ID text from Wikipedia, CC BY-SA 4.0

Where you might meet both
Learn this pair in the BeakBrain App
Photo and call practice. Coming soon to iPhone and Android.
Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Cinereous Tinamou and Tataupa Tinamou.