The collared gnatwren (Microbates collaris ) is a species of bird in the family Polioptilidae, the gnatcatchers. It is found in Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela.
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TerrestrialTerrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, snails), as compared with aquatic animals, which liv...
Oviparous animals are female animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive...
Flocking birds are those that tend to gather to forage or travel collectively. Avian flocks are typically associated with migration. Flocking also ...
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Not a migrantAnimals that do not make seasonal movements and stay in their native home ranges all year round are called not migrants or residents.
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starts withThe collared gnatwren is approximately 11 cm (4.3 in) long and weighs 10 to 12 g (0.35 to 0.42 oz). The nominate subspecies is brown above and mostly creamy white below. Its head has a brown crown, white supercilium, cheek, and throat, and a thick black line through the eye. The underside has a wide black band across the chest and olive-brown flanks. The sexes are similar. The other subspecies differ in the intensity and in some cases the hue of the upperparts and flanks and the width of some facial markings.
The subspecies of the collared gnatwren are distributed thus:
The collared gnatwren generally inhabits the undergrowth of wet, humid, terra firme forest, usually near water and mostly below 500 m (1,600 ft) elevation. It seldom occurs in forest edges. In French Guiana and Suriname it occurs in primary rainforest.
The collared gnatwren's diet is almost exclusively small arthropods. It forages very near the ground picking prey from foliage and probing leaf litter. It often joins mixed-species foraging flocks and may follow army ant swarms.
Information on the collared gnatwren's breeding phenology is sparse. A active nest was found in mid-May in Brazil and fledglings were observered in Guyana between August and October. The nest was a bulky cup constructed of rotted leaves lined with soft material and hidden close to the ground in a palmetto. It contained two eggs.
The IUCN has assessed the collared gnatwren as being of Least Concern. "None of the races is restricted to ecoregions considered to be under serious threat according to current and projected conservation status."
