Grey-throated Leaftosser

The grey-throated leaftosser (Sclerurus albigularis) is a Near Threatened species of bird in the subfamily Sclerurinae, the leaftossers and miners, of the ovenbird family Furnariidae. It is found in Bolivia, Brazil, Colombia, Costa Rica, Ecuador, Panama, Peru, Trinidad and Tobago, and Venezuela. == Taxonomy and systematics == The grey-throated leaftosser's taxonomy is unsettled. The International Ornithological Committee (IOC) and the Clements taxonomy assign it these seven subspecies: S. a. canigularis Ridgway, 1889 S. a. propinquus Bangs, 1899 S. a. albigularis Sclater, PL & Salvin, 1869 S. a. kunanensis Aveledo & Ginés, 1950 S. a. zamorae Chapman, 1923 S. a. albicollis Carriker, 1935 S. a. kempffi Kratter, 1997 BirdLife International's Handbook of the Birds of the World (HBW) does not recognize S. a. kunanensis. That subspecies might not be distinguishable from the nominate S. a. albigularis. The grey-throated and rufous-breasted leaftosser (S. scansor) are sister species. This article follows the seven-subspecies model. == Description == The grey-throated leaftosser is one of the larger members of genus Sclerurus. It is 16 to 18 cm (6.3 to 7.1 in) long and weighs 34 to 46 g (1.2 to 1.6 oz). The sexes are alike. The nominate subspecies has a grayish brown face with…