Northern Beardless-Tyrannulet

Camptostoma imberbeOrder: PASSERIFORMES Family: Flycatchers (Tyrannidae)

Codes: Common Name: NOBT Scientific Name: CAMIMB ITIS Taxonomic No.: 178376

Breeding Location:

Forest edge, Bushes, shrubs, and thickets, Forest

Breeding Type:

Monogamous

Breeding Population:

Yes but uncommon

Egg Color:

White with gray, olive or brown spots at large end

Number of Eggs:

1 - 3

Incubation Days:

Egg Incubator:

Female

Nest Material:

Grasses and weeds lined with down.

Migration:

Migratory

General

Northern Beardless-Tyrannulet: Small flycatcher with gray upperparts and breast, slight crest, pale eyebrow, indistinct eye-ring, and dull white or pale yellow belly. Wings are gray with two pale bars. Bill is small, slightly decurved, and dark with an orange base. Sexes are similar.

Range and Habitat

Northern Beardless-Tyrannulet: Breeds in southeastern Arizona and southernmost Texas. Most migrate to Mexico for the winter; also found in the tropics. Inhabits low thorn scrub, especially mesquite thickets and woodland borders.

Breeding and Nesting

Northern Beardless-Tyrannulet: One to three white eggs finely marked with brown, olive, and gray are laid in a spherical nest with a high entrance on one side, made of grass and weeds, and lined with vegetation, down, and feathers. Nest is built on an outer branch of a deciduous tree 4 to 50 feet above the ground. Incubation period is unknown but is carried out by the female.

Foraging and Feeding

Northern Beardless-Tyrannulet: In summer, hawks insects in mid-air; in winter, forages for insects by gleaning from twigs and leaves like a kinglet, warbler, or vireo. Also feeds on small berries.

Readily Eats

Meal Worms

Vocalization

Northern Beardless-Tyrannulet: Song is a series of clear notes with a whistled, slightly nasal "peeert" or "pee-yert."

Similar Species

Northern Beardless-Tyrannulet: Buff-breasted Flycatcher is slightly larger, has pale brown upperparts and head, cinnamon-brown breast, belly, and underparts, two white wingbars, and white eye-ring that forms a teardrop.

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Bird Call Credits: The Macaulay Library of Natural Sounds at the Cornell Lab of Ornithology. Martyn Stewart, http://www.naturesound.org, Redmond, Washington USA. The reuse or copying of bird calls in this database is strictly forbidden.

Northern Beardless-Tyrannulet

Northern Beardless-Tyrannulet: Small flycatcher with gray upperparts and breast, slight crest, pale eyebrow, indistinct eye-ring, and dull white or pale yellow belly. Wings are gray with two pale bars. The bill is small, slightly decurved, and dark with an orange base. Weak direct flight.

● Song: "peeert" or "pee-yert"

● Foraging & Feeding: Northern Beardless-Tyrannulet: In summer, hawks insects in mid-air; in winter, forages for insects by gleaning from twigs and leaves like a kinglet, warbler, or vireo. Also feeds on small berries.

● Breeding & nesting: Northern Beardless-Tyrannulet: One to three white eggs finely marked with brown, olive, and gray are laid in a spherical nest with a high entrance on one side, made of grass and weeds, and lined with vegetation, down, and feathers. Nest is built on an outer branch of a deciduous tree 4 to 50 feet above the ground. Incubation period is unknown but is carried out by the female.

● Similar species: Northern Beardless-Tyrannulet: Buff-breasted Flycatcher is slightly larger, has pale brown upperparts and head, cinnamon-brown breast, belly, and underparts, two white wingbars, and white eye-ring that forms a teardrop.

Flight Pattern

Weak direct flight on rapidly beating wings.

Northern Beardless-Tyrannulet Worn Adult Body Illustration

● Range & Habitat: Northern Beardless-Tyrannulet: Breeds in southeastern Arizona and southernmost Texas. Most migrate to Mexico for the winter; also found in the tropics. Inhabits low thorn scrub, especially mesquite thickets and woodland borders.

^BreedingMonogamous

^PopulationYes but uncommon

^MigrationMigratory

^Weight0.3 Ounces

Upperparts

Back, rump, hindneck, wings, and crown.

Belly

The ventral part of the bird, or the area between the flanks on each side and the crissum and breast. Flight muscles are located between the belly and the breast.

Breast

The upper front part of a bird.

Crest

Tufts of feathers on the head of the bird.

Eyebrow

Also called the supercilicum or superciliary it is the arch of feathers over each eye.

4 and 6 letter alpha codes

The four letter common name alpha code is is derived from the first two letters of the common first name and the first two letters of common last name. The six letter species name alpha code is derived from the first three letters of the scientific name (genus) and the first three letters of the scientific name (species). See (1) below for the rules used to create the codes..

Four-letter (for English common names) and six-letter (for scientific names) species alpha codes were developed by Pyle and DeSante (2003, North American Bird-Bander 28:64-79) to reflect A.O.U. taxonomy and nomenclature (A.O.U. 1998) as modified by Supplements 42 (Auk 117:847-858, 2000) and 43 (Auk 119:897-906, 2002). The list has been updated by Pyle and DeSante to reflect changes reported by the A.O.U from 2003 through 2006.

Field Guide to Birds of North America