The Slaty-breasted Tinamou Crypturellus boucardi, also known as Boucard's Tinamou, is a type of Tinamou commonly found in lowlands of moist forest in subtropical and tropical regions up to 1,800 m altitude. This species ranges from southern Mexico from southern Vera Cruz and northern Oaxaca south, to northern Costa Rica. (Mexico, Belize, Guatemala, Honduras, Nicaragua and Costa Rica) It has an estimated global extent of occurrence of 330,000 kmē.
This species is named after Adolphe Boucard to commemorate him.
- Nominate race (Crypturellus boucardi boucardi)
- Crypturellus boucardi costaricensis
The Slaty-breasted Tinamou is approximately 25 cm in length. It is a shy and difficult tinamou to be seen on the dark forest floors. Its upperparts are blackish, brown on wings, slaty grey on breast, grey-brown on remainder of underparts with darker barring on flanks and undertail. Its bill is dark above and yellow below, legs reddish orange. It has a hollow "?ah-wah' voice with the second syllable downslurred.