Cinereous-breasted Spinetail

The cinereous-breasted spinetail (Synallaxis hypospodia) is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Bolivia, Brazil, Paraguay, and Peru. == Taxonomy and systematics == The cinereous-breasted spinetail was previously treated as a subspecies of Spix's spinetail (S. spixi); the two are now considered sister species. The cinereous-breasted spinetail is monotypic. == Description == The cinereous-breasted spinetail is 15 to 16 cm (5.9 to 6.3 in) long and weighs 15 to 18 g (0.53 to 0.63 oz). The sexes have the same plumage. Adults have a faint gray supercilium on an otherwise gray-brown face. Their forecrown is dark gray-brown, their crown and nape chestnut-rufous, and their back, rump and uppertail coverts dark brown. Their wing coverts are chestnut-rufous and their flight feathers dark brown with rufescent edges. Their tail is a darker brown than the back; it is graduated and the feathers have rounded tips. Their chin and throat are mostly whitish; the lower throat feathers are blackish with whitish edges. Their breast is brownish gray ("cinereous" means ash-colored), their belly whitish, and their flanks and undertail coverts brownish. Their iris is reddish brown, their maxilla black, their mandible silvery gray to…