howler monkey

US /ˈhaʊ.lər ˌmʌŋ.ki/
UK /ˈhaʊ.lər ˌmʌŋ.ki/
"howler monkey" picture
1.

a large, arboreal monkey of Central and South America, noted for its loud howling cries

:
The sound of a howler monkey echoed through the rainforest.
We spotted a family of howler monkeys high in the trees.