Northern beardless tyrannulet | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Tyrannidae |
Genus: | Camptostoma |
Species: | C. imberbe |
Binomial name | |
Camptostoma imberbe Sclater, PL, 1857 | |
Subspecies | |
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Breeding Year-round |
The northern beardless tyrannulet (Camptostoma imberbe) is a small passerine bird in the tyrant flycatcher family. It breeds from southeasternmost Arizona and Texas of the United States through Mexico and Central America to northwestern Costa Rica.
This species is found in light forests, cultivation and gardens with trees. The domed nest is made of plant fibre or leaves with a side entrance. The nest is placed by a tree fork. The typical clutch is two white eggs, which are marked with rufous and lilac mostly at the larger end. Incubation by the female is 14–15 days to hatching, with another 17 days to fledging.
The northern beardless tyrannulet is 10.2 cm (4.0 in) long, and weighs 7.5 g (0.26 oz). The head is dark brown with an erectile crest and pale supercilium. The upperparts are grey-green becoming paler on the rump. The wings are brown with yellow feather-edging and two whitish wing bars. The tail is brown, the throat grey, the breast yellowish, and the abdomen yellow. The bill is pinkish.
Sexes are similar, and this species always appears not as bright, especially with regard to the wing bars, as the closely related southern beardless tyrannulet, C. obsoletum, with which it was once considered conspecific. However, the two forms overlap without interbreeding in Costa Rica.
Northern beardless tyrannulets are active birds, feeding in a vireo or warbler-like fashion on insects, spiders and berries. The call is a loud whistled Fleeeeeerrr, sometimes broken up as a fleeer-it, or a flee-flee-flee-flee. In courtship, or when alarmed, the crests are raised, the tail flicked, and an excited call is made.
The northern rough-winged swallow is a small, migratory swallow. It is very similar to the southern rough-winged swallow, Stelgidopteryx ruficollis.
The eastern plantain-eater also known as the eastern grey plantain-eater, is a large member of the turaco family, a group of large arboreal near-passerine birds restricted to Africa.
The southern beardless tyrannulet is a small passerine bird in the tyrant flycatcher family. It breeds from Costa Rica through South America south to Paraguay, Bolivia, and Argentina.
The bran-colored flycatcher is a small passerine bird in the tyrant flycatcher family. It breeds from Costa Rica through South America to Bolivia, Uruguay, and Argentina. It also occurs on Trinidad.
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The long-tailed silky-flycatcher is a passerine bird which occurs only in the mountains of Costa Rica and western Panama, usually from 1,850 m altitude to the timberline. It is a thrush-sized species weighing about 37 g. The silky-flycatchers are related to waxwings, and like that group have soft silky plumage.
The torrent tyrannulet is a small bird of the tyrant flycatcher family. It breeds from Costa Rica south to northern Bolivia and northwestern Venezuela.
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The yellow tyrannulet is a very small passerine bird in the tyrant flycatcher family. It breeds from Nicaragua south to northeastern Argentina and southeastern Brazil. It is the only member of the genus Capsiempis, but its taxonomy is uncertain, and it has been allocated to at least three other genera in the past.
The black-capped flycatcher is a very small passerine bird in the tyrant flycatcher family. It is endemic to the highlands of Costa Rica and western Panama.
The Guatemalan tyrannulet or paltry tyrannulet, is a very small passerine bird in the tyrant flycatcher family. It occurs in southern Mexico, Guatemala, El Salvador and southern Belize.
The dark pewee is a small passerine bird in the tyrant flycatcher family. It is endemic to the Talamancan montane forests of Costa Rica and western Panama.
The mountain elaenia is a small passerine bird in the tyrant flycatcher family. It breeds in highlands from Guatemala to Colombia and western Venezuela. The scientific name celebrates the German physician and naturalist, Alexander von Frantzius.
The northern tufted flycatcher or simply tufted flycatcher is a small passerine bird in the tyrant flycatcher family. It breeds in highlands from northwestern Mexico to northwestern Ecuador. The olive flycatcher of Peru and Bolivia is now considered a separate species.
The black-capped pygmy tyrant is the smallest passerine bird in its range, though larger than its cousin, the short-tailed pygmy tyrant. This tyrant flycatcher occurs from Costa Rica to north-western Ecuador.
The yellow-thighed brushfinch is a passerine bird which is endemic to the highlands of Costa Rica and western Panama. Despite its name, it is not a true finch, but rather a member of the family Passerellidae, which also includes American sparrows, juncos and towhees.
The peg-billed finch, Acanthidops bairdi, is a passerine bird endemic to the highlands of Costa Rica and western Panama. Despite its name, it is not a true finch, but now recognized as a member of the tanager family (Thraupidae), after being long placed in the Emberizidae. It is the only member of the genus Acanthidops. The scientific name commemorates the American ornithologist Spencer Fullerton Baird.
The slaty flowerpiercer, Diglossa plumbea, is a passerine bird endemic to the Talamancan montane forests.
The gray hawk or Mexican goshawk is a smallish raptor found in open country and forest edges. It is sometimes placed in the genus Asturina as Asturina plagiata. The species was split by the American Ornithological Society (AOU) from the gray-lined hawk. The gray hawk is found from Costa Rica north into the southwestern United States.