Rufous-breasted Leaftosser
Photo © Laura Gaudette
Photo © Laura Gaudette — CC BY 4.0 — Source: iNaturalist photo #343570443The rufous-breasted leaftosser (Sclerurus scansor) is a species of bird in the subfamily Sclerurinae, the leaftossers and miners, of the ovenbird family Furnariidae. It is found in Argentina, Brazil, and Paraguay. == Taxonomy and systematics == The rufous-breasted leaftosser's taxonomy is unsettled. The International Ornithological Committee (IOC) and the Clements taxonomy assign it two subspecies, the nominate S. s. scansor (Ménétries, 1835) and S. s. cearensis (Snethlage, E, 1924). BirdLife International's Handbook of the Birds of the World (HBW) treats the taxa as two separate species, the rufous-breasted leaftosser sensu stricto and the Ceara leaftosser S. cearensis. The South American Classification Committee of the American Ornithological Society also does not recognize the "Ceara leaftosser" but does not address subspecies within the rufous-breasted. The rufous-breasted and grey-throated leaftosser (S. albigularis) are sister species. This article follows the one species, two-subspecies model. == Description == The rufous-breasted leaftosser is one of the larger members of genus Sclerurus. It is 17.5 to 20.1 cm (6.9 to 7.9 in) long and weighs 30 to 41 g (1.1 to 1.4 oz). The sexes are alike. The nominate subspecies has a dark brownish face with a somewhat grizzled appearance. Its crown is very dark brown with…
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