Chestnut-headed Nunlet

Nonnula amaurocephala

Small puffbird with a large head and bill. Uncommon and rarely encountered, restricted to a small area along the Amazon river in central-western Amazonia. Typically found in the understory of dense, shaded flooded forests. Plumage is mostly a uniform rufous-brownish, with darker brown wings and upperparts. 

Identification

The chestnut-headed nunlet is 14 to 15 cm (5.5 to 5.9 in) long and weighs 15 to 16 g (0.53 to 0.56 oz). Its entire head, upper mantle, breast, and upper belly are bright rufous. Its back, wings, and tail are plain dull brown; the rump has an olive wash. The rufous upper belly grades to whitish on the lower belly. The bill is mostly black, the eye red, and the feet lead gray.

Taxonomy

The chestnut-headed nunlet is monotypic. It, the rufous-capped nunlet (N. ruficapilla), and the grey-cheeked nunlet (N. frontalis) form a superspecies.

Scientific name
Nonnula amaurocephala
Authority
Chapman, 1921
Order
Piciformes
Family
Bucconidae
Genus
Nonnula

Range and habitat

The chestnut-headed nunlet is found only in a small part of Brazil's Amazonas state, north of the Amazon River and west of the Negro River. It almost exclusively inhabits the understory of seasonally flooded igapó forest, usually up to about 3 m (10 ft) above the ground but sometimes as high as 8 m (26 ft).

Migration
Resident species

Behavior

Migration pattern: Resident species.

Conservation

Population trend: declining.

Population trend
declining

Photos

Distribution

Other Birds

Western Sandpiper

Western Sandpiper

Calidris mauri

Small sandpiper with relatively long, droopy bill (longer on females). In breeding plumage, shows rich rufous tones on shoulders, cheeks, and crown. Nonbreeding is plain pale gray above and white below. Juveniles look pale-faced and have a bright strip of rufous feathers on the upper edge of the wings. Most similar to Semipalmated Sandpiper, which averages shorter-billed and duller grayish-brown overall. Extremely difficult to distinguish in winter; note Western is somewhat larger-headed and more front-heavy. Droopy bill might recall Dunlin, but Western is smaller and paler. Breeds on high Arctic tundra in Alaska. In migration and winter, occurs in large flocks on mudflats and beaches. Much more common in western North America; uncommon to rare on the east coast. Occurs in the winter in the U.S., unlike Semipalmated Sandpiper; regularly winters as far south as Peru, rare to Chile.

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Visayan Blue-Fantail

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Keel-billed Motmot

Keel-billed Motmot

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Medium-sized forest-dweller that likes to sit motionless. Mostly dull green, slightly buffier below, with black mask and breast spot. Orange forehead and blue eyebrow and chin are distinctive. Most similar to larger Lesson’s Motmot; note smaller size and face pattern. Often found singly or in pairs inside forest, usually below canopy. Never common; quite inconspicuous and can be difficult to find within its limited range. Call very similar to Broad-billed Motmot.

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