The throat is bare and is
greenish-yellow to orange in all
plumages. The
adult has
black crown and light grey sides of the head, the sides of the neck and the upperparts otherwise blackish narrowly barred
buff. The
median stripe down the fore-neck is white-bordered with black; the remaining underparts are dull cinnamon brown. The juvenile is buff coarsely barred with black, more mottled and vermiculated on wings; the throat, median underparts, and belly are whitish. The flight is heavy, and the call is a hoarse
howk-howk-howk. Males also give a booming
hrrrowwr! call, especially at sunset. During emission of the call, the beak opens wide and undulations can be seen along the course of the throat from mid-thorax caudally. Bare-throated Tiger Heron in Corcovado National Park, Costa Rica.jpg|Adult Bare-throated tiger-heron (Tigrisoma mexicanum) immature on nest Peten.jpg|Juvenile on Nest Bare-throated Tiger Heron1.jpg|Juvenile ==References== • Robert S. Ridgely and John A. Gwynne -
Birds of Panama with Costa Rica, Nicaragua and Honduras • Stiles and Skutch,
A guide to the birds of Costa Rica ==External links==