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Tawny tit-spinetail
The tawny tit-spinetail (Sylviorthorhynchus yanacensis) is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Argentina, Bolivia, and Peru.
The tawny tit-spinetail was first placed in genus Leptasthenura but genetic data published in 2011 places it firmly in genus Sylviorthorhynchus. It shares the genus with Des Murs's wiretail (S. desmurii) and together they are sister species.
The tawny tit-spinetail is monotypic. However, the Peruvian and Bolivian populations have some plumage differences and there is speculation that they may represent different taxa.
The tawny tit-spinetail is 16 to 17.5 cm (6.3 to 6.9 in) long and weighs 10 to 12 g (0.35 to 0.42 oz). The sexes have the same plumage. Adults have a mostly bright cinnamon buff face with a tawny rufous forehead and a tawny brown crown. The Peruvian poplulation has a narrow buff supercilium while that of Bolivian birds is whitish. Their back is tawny brown and their rump and uppertail coverts are rufous. Their wing coverts are dusky with rufous edges and their flight feathers are dusky brown with much rufous on their outer webs. Their tail is graduated and rufous. Their underparts are bright cinnamon buff, somewhat paler in Bolivian birds than Peruvian ones. Their iris is brown, their bill dark brown to black, and their legs and feet dark gray to blackish.
The tawny tit-spinetail has a disjunct distribution. One population is found in the Cordillera Blanca of Peru's Department of Ancash and adjacent Department of Lima. A second is in the southern Peruvian departments of Apurímac, Cuzco, and [Puno. A third is found from La Paz Department in northern Bolivia south into Jujuy and Salta provinces in northwestern Argentina.
The tawny tit-spinetail primarily inhabits Polylepis woodland but also occurs in montane scrublands and some grasslands. In elevation it occurs between 3,950 and 4,600 m (13,000 and 15,100 ft) in Peru, between 2,800 and 4,200 m (9,200 and 13,800 ft) in Bolivia, and between 2,900 and 3,600 m (9,500 and 11,800 ft) in Argentina.
The tawny tit-spinetail is a year-round resident throughout its range.
The tawny tit-spinetail's diet has not been detailed but it is known to be mostly arthropods with small amounts of plant material. It forages in pairs or in small groups that might be families and often join mixed-species feeding flocks. It usually forages by gleaning its prey from leaves, twigs, and the bark of branches. It sometimes hangs upside down to reach prey. It sometimes also forages on the ground.
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Tawny tit-spinetail
The tawny tit-spinetail (Sylviorthorhynchus yanacensis) is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Argentina, Bolivia, and Peru.
The tawny tit-spinetail was first placed in genus Leptasthenura but genetic data published in 2011 places it firmly in genus Sylviorthorhynchus. It shares the genus with Des Murs's wiretail (S. desmurii) and together they are sister species.
The tawny tit-spinetail is monotypic. However, the Peruvian and Bolivian populations have some plumage differences and there is speculation that they may represent different taxa.
The tawny tit-spinetail is 16 to 17.5 cm (6.3 to 6.9 in) long and weighs 10 to 12 g (0.35 to 0.42 oz). The sexes have the same plumage. Adults have a mostly bright cinnamon buff face with a tawny rufous forehead and a tawny brown crown. The Peruvian poplulation has a narrow buff supercilium while that of Bolivian birds is whitish. Their back is tawny brown and their rump and uppertail coverts are rufous. Their wing coverts are dusky with rufous edges and their flight feathers are dusky brown with much rufous on their outer webs. Their tail is graduated and rufous. Their underparts are bright cinnamon buff, somewhat paler in Bolivian birds than Peruvian ones. Their iris is brown, their bill dark brown to black, and their legs and feet dark gray to blackish.
The tawny tit-spinetail has a disjunct distribution. One population is found in the Cordillera Blanca of Peru's Department of Ancash and adjacent Department of Lima. A second is in the southern Peruvian departments of Apurímac, Cuzco, and [Puno. A third is found from La Paz Department in northern Bolivia south into Jujuy and Salta provinces in northwestern Argentina.
The tawny tit-spinetail primarily inhabits Polylepis woodland but also occurs in montane scrublands and some grasslands. In elevation it occurs between 3,950 and 4,600 m (13,000 and 15,100 ft) in Peru, between 2,800 and 4,200 m (9,200 and 13,800 ft) in Bolivia, and between 2,900 and 3,600 m (9,500 and 11,800 ft) in Argentina.
The tawny tit-spinetail is a year-round resident throughout its range.
The tawny tit-spinetail's diet has not been detailed but it is known to be mostly arthropods with small amounts of plant material. It forages in pairs or in small groups that might be families and often join mixed-species feeding flocks. It usually forages by gleaning its prey from leaves, twigs, and the bark of branches. It sometimes hangs upside down to reach prey. It sometimes also forages on the ground.