Nombre en español: Atrapamoscas Bigotudo

Nombre en ingles: Sulphur-rumped Flycatcher

Nombre científico: Myiobius barbatus

Familia: Tyrannidae

Foto: Mauricio Ossa

Canto: Marcus Braun

La moscareta barbada (Myiobius barbatus), también denominada atrapamoscas bigotudo, mosquero de rabadilla amarilla y mosquerito lomiazufrado, es una especie de ave paseriforme de la familia Tyrannidae que vive en Sudamérica. La subespecie Myiobius barbatus mastacalis es separada por algunos como especie aparte, Myiobius mastacalis.

Descripción

En promedio mide 12,5 cm de longitud. Las partes superiores son de color oliva, el macho con un parche amarillo poco visible en la corona. La garganta y el pecho y los hombros son oliva grisáceo y, pueden presentar matices ante ocráceo en los ejemplares juveniles; el vientre es amarillo claro. El obispillo presenta un color amarillo azufrado muy notorio y la cola es negra y redondeada.

Distribución y hábitat

Se encuentra en Brasil, Colombia, Ecuador, la Guayana francesa, Guyana, Perú, Surinam y Venezuela.

Sus hábitats naturales son las selvas húmedas tropicales y subtropicales de regiones bajas, por debajo de los 900 m de altitud.

Comportamiento

Alimentación

Se alimenta de insectos, que busca con gran inquietud, frecuentemente integrando bandas mixtas con otras especies.

Reproducción

Construye un nido en forma de campana cerrada, con entrada lateral en la parte de abajo, colgado de ramas o de salientes de rocas, entre 2 e 14 m de altura, generalmente sobre el agua. La hembra pone 2 huevos blancos con manchas marrón.

Whiskered myiobius

The whiskered myiobius or bearded flycatcher (Myiobius barbatus) is a species of bird in the family Tityridae, having previously been included in Tyrannidae. A number of taxonomic authorities continue to place with the flycatchers. The whiskered myiobius is found in Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela. Its natural habitats are subtropical or tropical moist lowland forests and heavily degraded former forest.

Subspecies

Six subspecies are recognised; M. b. semiflavus from east and central Colombia; M. b. barbatus from southeastern Colombia to northern Peru, south Venezuela, the Guianas and northern Brazil; M. b. amazonicus from eastern Peru and western Brazil; M. b. insignis from northeastern Brazil, south of the River Amazon; M. b. mastacalis from southeastern Brazil, south of the River Amazon. The subspecies M. b. mastacalis is sometimes split as the yellow-rumped myiobius (Myiobius mastacalis).

Description

The whiskered myiobius is very similar in appearance to several closely related species. It has olive upper parts, an obvious yellow rump and a usually well-concealed yellow patch on the crown. The rictal bristles round the beak are long and form a basket-like structure. The underparts are greyish-olive and the belly pale yellow. The tail is black and somewhat rounded. It is usually a silent bird, but sometimes utters a staccato «psik».

Distribution and habitat

The species is widely distributed in tropical South America. It is found in the Amazon basin in the northern half of Brazil, northeastern Peru, eastern Ecuador, eastern Colombia, southern Venezuela, Guyana, Suriname and French Guiana. Its typical habitat is the lower parts of the canopy of humid rainforest at altitudes of less than 900 m (3,000 ft). It is more often found in the middle of forests than is the black-tailed myiobius (M. atricaudus), and in Amazonia occurs at lower elevations than the tawny-breasted myiobius (M. villosus).

Ecology

Like other myiobius, the diet consists largely of insects, many of which are caught aerobatically on the wing. It often forages in small mixed flocks. When perched, this bird often droops its wings and fans the feathers of the tail in a manner reminiscent of Old World fantails (Rhipidura).

Status

No particular threats facing this bird have been identified. It is generally uncommon, but it has a very wide range and the population seems to be steady, so the International Union for Conservation of Nature has rated its conservation status as being of «least concern».