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Forest and Rangeland Birds of the United States

Natural History and Habitat Use

Northern Beardless-Tyrannulet -- Camptostoma imberbe
(formerly Beardless Flycatcher)


RANGE: Breeds from southeastern Arizona, extreme southwestern New Mexico in Guadalupe Canyon, and Kenedy County in Texas south to Costa Rica. Winters in Mexico and Central America, casually to southern Arizona.

STATUS: Fairly common to rare.

HABITAT: In Arizona, occurs in cottonwoods, dense mesquite thickets, and in sycamore-live oak-mesquite associations. Along the lower Rio Grande Valley in Texas, inhabits mesquite woodlands, cottonwoods, willows, elms, and great luecaenas.

NEST: Typically nests far out on a horizontal limb of a bush or tree up to 50 feet high, but usually near the ground. Usually nests along the edge of a grove, or among scattered trees in flat, sandy lowlands. Locates nest in a clump of mistletoe or sometimes between the bases of stems of palmetto fans.

FOOD: Perches on the top branch of a tree or in lower branches to flycatch and glean scale insects, caterpillars, and ants. Occasionally eats small berries and seeds.

REFERENCES: Bent 1942, Harrison 1979, Oberholser 1974a, Phillips et al. 1964, Terres 1980.


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