The Slaty-breasted Tinamou (Crypturellus boucardi) ranges from southeast Mexico to Costa Rica. It frequents dense undergrowth in wet forest and old second growth. Its size is of 28 cm (11 inches) in height and 500 g in weight.
Males have a whitish throat, and its head, neck, breast, and upper back are dark gray. Rest of upperparts are dark brown, barred with black. Upper mandible is black, and lower horn-color to yellowish. They eat fallen fruits and seed, including palms, ants, and other insects, and sometimes small lizards and frogs.