Collared Gnatwren (Microbates collaris)

Collared Gnatwren

[order] Passeriformes | [family] Polioptilidae | [latin] Microbates collaris | [UK] Collared Gnatwren | [FR] Microbate a collier | [DE] Halsband-Degenschnabler | [ES] Salton Acollarado | [IT] Zanzariere dal collare | [NL] Zwartborst-muggensluiper

Subspecies

Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range
Microbates collaris SA n, w Amazonia
Microbates collaris collaris
Microbates collaris paraguensis
Microbates collaris perlatus

Physical charateristics

Crown and mantle olive-brown, with a long white eystripe.Sides of the had white with a black band behind the eye and a black moustache. Wings and tail dull black margined olive. Underparts white and a braod black breast band giving it its name. Sexes are similar.

Listen to the sound of Collared Gnatwren

[audio:http://www.aviflevoland.nl/sounddb/C/Collared Gnatwren.mp3]

Copyright remark: Most sounds derived from xeno-canto

wingspan min.: 0 cm wingspan max.: 0 cm
size min.: 11 cm size max.: 12 cm
incubation min.: 14 days incubation max.: 15 days
fledging min.: 12 days fledging max.: 13 days
broods: 1   eggs min.: 2  
      eggs max.: 3  

Range

is found in Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela

Habitat

Its natural habitat is subtropical or tropical moist lowland forests.

Reproduction

The bulky, leafy cup is usually built low above ground crossing twigs in moderately dense undergrowth. The body of the nest consists of compacted rotten leaves, with leaf rachises on the outside. The lining was of much thinner and soft leaves. It is about 10 cm in outside diameter and height, 4.7 cm in internal diameter, and 4 cm in inside depth. Clutch size is two white eggs with a few small brown spots incubated by both parents for about 2 weeks. The young are born naked, with dark skin and pale yellow gapes, They fledge the nest after 12-13 days.

Feeding habits

Feeds mainly for small insects and spiders. It inhabits terra firme rain forests and lives alone, in pairs or in small family groups, hopping through the thick lower branches and descending to the ground to hunt insects.

Conservation

This species has a large range, with an estimated global extent of occurrence of 2,100,000 km². The global population size has not been quantified, but the species is not believed to approach the thresholds for the population size criterion of the IUCN Red List (i.e., less than 10,000 mature individuals in conjunction with appropriate decline rates and subpopulation qualifiers), even though the species is described as ‘uncommon’ in at least parts of its range (Stotz et al. 1996). Global population trends have not been quantified, but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e., declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern.
Collared Gnatwren status Least Concern

Migration

Sedentary throughout range.

Distribution map

Collared Gnatwren range map

Literature

Title A NEST OF THE COLLARED
GNATWREN (MICROBATES COLLARIS)
Author(s): YOSHIKA ONIKI AND EDWIN 0. WILLIS
Abstract: According to Kiff (Condor 79:261-262, 1977), the
..[more]..
Source: Condor, 81:101-102

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