Black-capped Pygmy-Tyrant
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| Myiornis atricapillus (Lawrence, 1875) |
The Black-capped Pygmy-Tyrant, Myiornis atricapillus, is a very small passerine bird in the tyrant flycatcher family. It breeds from Costa Rica to western Ecuador.
It is a species of the forest canopy, coming lower at edges and clearings, and in second growth and semi-open woodland. It is fairly common, except in arid areas, in the Caribbean lowlands, breeding from sea level to sometimes 600 m altitude. The female builds a 15 cm long pouch nest with a round side entrance, which is suspended from a thin branch 1-7 m high in a tree. The female incubates the two brown-blotched white eggs for 15-16 days to hatching.
The Black-capped Pygmy-Tyrant is a tiny short-tailed bird, 6.5 cm long, and weighing 5.2 g. The crown is black, shading to dark grey on rest of the head, and contrasting with the white “spectacles”. The rest of the upperparts are olive-green. The tail and the wings are blackish with yellow edging to the feathers and two yellow wing bars. The throat and central breast are white, shading to grey on the flanks and pale yellow on the belly. The sexes are similar, but females have a duller, sootier crown, and young birds have a browner crown and upperparts, and their wing markings and underparts are tinged with buff.
The Black-capped Pygmy-Tyrant can be seen alone, in pairs, or family groups, hunting small insects in rapid dashes.
The call is a thin ttseep which can be confused with an insect or frog. Family groups alsocommunicate with soft whistles and trills.
[edit] References
- Stiles and Skutch, A guide to the birds of Costa Rica, ISBN 0-8014-9600-4
