Large, chicken-like bird of humid lowland and foothill forest in western Ecuador and western Colombia. Brown with a gray head, yellow bill, and pink legs. Similar to Gray-cowled Wood-Rail but gray restricted to head. This rare and threatened species prefers swampy areas such as stream edges and mangroves, and is typically encountered in pairs. Shy and very hard to see. Usually first detected by it song, a very long, rollicking series of notes, often given by both members of the pair.