About Crypturellus undulatus (Temminck, 1815)
The undulated tinamou, Crypturellus undulatus, is approximately 28–30 cm (11.0–11.8 in) long and weighs around 300 g (0.66 lb). Its overall base color is brownish with varying degrees of grey tint, which differs between subspecies. It has a prominent black pattern across its back and neck, ranging from clear barring to faint vermiculation. For example, the subspecies C. u. undulatus is a relatively rich brown with strong barring, while C. u. yapura is darker, more grey-toned, and only has faint vermiculations. This species has a whitish throat; the rest of its underparts are colored olive-grey to buff, with dark vermiculation on the lower flanks and vent. Its bill is black on the upper mandible and grey on the lower mandible. Its legs and feet can be grey, dull yellow, or greenish. The undulated tinamou lives at altitudes up to 900 m (3,000 ft). It occupies a wide variety of wooded habitats, from dense humid Amazonian forests to dry, relatively open savanna-woodland. While most of the undulated tinamou's range falls within the Amazon Basin, significant portions of its range cover drier habitats such as the Cerrado; most of the range of the subspecies C. u. vermiculatus is located in the Cerrado region. Though the species is generally considered resident, minor local seasonal movements between different habitats do occur.
