Great tinamou (Tinamus major)

Wikipedia eBird Xeno-Canto

La tarde great tinamou tenative ID by MerlinBirdID. 2018-03-09 12.58.40 Costa Rica
Classification: Genus Tinamus; Family Tinamidae
General: The great tinamou (Tinamus major) is a species of tinamou ground bird native to Central and South America. There are several subspecies, mostly differentiated by their coloration. [more]

First documented observation : 2018-03-09 in Costa Rica.