About Nonnula frontalis (P.L.Sclater, 1854)
Grey-cheeked nunlet (scientific name Nonnula frontalis (P.L.Sclater, 1854)) measures 14 to 15 cm (5.5 to 5.9 in) long and weighs 14.5 to 19.5 g (0.51 to 0.69 oz). The nominate subspecies has a very dark chestnut crown, plain brown upperparts that are lighter on the rump, a dark brown tail that is almost black near the tip. Most of the face is gray, with a ring of bare red skin around the dark brown eye. Its chin, throat, breast, and flanks are rufous, and the belly is buffy. The bill is mostly blue-gray, and the feet are dull brown or greenish gray. Subspecies N. f. stulta has a very dark crown, with a blacker tail and a drabber rump than the nominate subspecies. Subspecies N. f. pallescens has much paler upperparts than the nominate, and its throat and breast are buff. This species has a somewhat restricted range that extends from central Panama to north-central Colombia. N. f. stulta, the northernmost subspecies, occurs from central Panama into extreme northwestern Colombia. N. f. pallescens is found in the Caribbean lowlands of northern Colombia. The nominate subspecies occurs in the interior of northern Colombia. The grey-cheeked nunlet inhabits a variety of landscapes: moist to humid primary and secondary forest, gallery forest, and thickets, and it especially favors river-side woodlands. It usually lives in the lower levels of the forest, but can also be found up to the subcanopy. It occurs at elevations ranging from sea level to 1,000 m (3,300 ft).
