The Whooping Motmot (Momotus subrufescens) is the most widespread, familiar motmot of the lowlands of eastern Panama and northwestern South America, where its hooting call is a familiar sound in lowlands forests. The Whooping Motmot is the only member of the "Blue-crowned Motmot" complex that occurs in the lowlands of Panama and of northwestern South America, and so readily is identifiable within its geographic range. Members of the "Blue-crowned Motmot" complex can be divided into two vocal groups, those that give songs consist of a single note, and those whose song contains two notes. The Whooping Motmot is a member of the single note group. The song is transcribed as "whoooop”.