Information about the Bird Napo Stipple-throated Antwren
The Napo stipple-throated antwren or rufous-backed antwren (Epinecrophylla haematonota) is a species of bird in the family Thamnophilidae. It was formerly placed in the genus Myrmotherula. In 2014, the species name was changed from stipple-throated antwren when two former subspecies were reclassified as the Negro stipple-throated antwren and Madeira stipple-throated antwren. It is found in eastern Peru and western Brazil in its natural habitat of subtropical or tropical moist lowland forests.
The Napo stipple-throated antwren is about 11cm (4.3in) long. The male has mainly brown upper parts with a reddish-brown back and rump, and black wing coverts with white speckling and two white bars. The male's throat is black spotted with white, and the sides of the head, the breast and belly are grey. The female is similar to the male but the wing coverts are tipped with buff and the sides of the face and the throat are ochre, the throat sometimes being tinged with red. In both sexes, the colour of the iris is variable and can be orange, dark or whitish, and the tail is brown which distinguishes this species from the rufous-tailed antwren (Epinecrophylla erythrura). The song is a trill of short, staccato notes, first rising in pitch and then descending.
The species is often seen in small mixed flocks of passerine birds moving through the forest and foraging in the lower parts of the canopy. The diet consists mainly of insects and spiders, particularly crickets, and is found on shoots and leaves, with the bird often probing into curled, dead foliage.
E. haematonota is a fairly common bird with a wide range. No particular threats are known, and in the absence of contrary information, the population is presumed to be stable and the International Union for Conservation of Nature has rated the conservation status of this bird as being of "least concern".
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