Portoriko Puhucuğu Gymnasio nudipes

A small nocturnal species of most wooded habitats including suburban areas and parks. During the day it roosts in tree cavities or dense vegetation. Note that this species comes in two color forms: rust and gray. Both morphs have prominent eyebrows and the facial discs are bordered below and behind by white. The “ears” are not always visible. Occasionally sings during the day. Song is a low tremulous trill, typically growing louder towards the middle and softer towards the end, which is sometimes followed by a low cackle. Pairs sometimes duet; female song is higher-pitched. No similar species within its range.