Brown-capped Tit-Spinetail

The brown-capped tit-spinetail (Leptasthenura fuliginiceps) is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Argentina and Bolivia. == Taxonomy and systematics == The brown-capped tit-spinetail has two subspecies, the nominate L. f. fuliginiceps (D'Orbigny & Lafresnaye, 1837) and L. f. paranensis (Sclater, PL, 1862). == Description == The brown-capped tit-spinetail is 15 to 16 cm (5.9 to 6.3 in) long and weighs 9 to 13 g (0.32 to 0.46 oz). It is a small, slender, long-tailed furnariid with a short bill. The sexes have the same plumage. Adults of the nominate subspecies have a pale dull buff supercilium on an otherwise plain brownish face. Their crown is brown, their upper back a paler brown, and their lower back, rump, and uppertail coverts are refescent. Their wings are mostly rufous. Their tail is rufous; it is graduated and the feathers narrow at the tips giving a spiny appearance. Their underparts are pale tawny brownish with a rufescent tinge to the flanks and undertail coverts. Their iris is brown to dark brown, their maxilla black to dusky brownish horn, their mandible horn to pearl-gray with a dusky tip, and their legs and feet…