Chiguanco Thrush

The Chiguanco thrush (Turdus chiguanco) is a species of bird in the family Turdidae. It is found from Ecuador south to Argentina. == Taxonomy and systematics == The Chiguanco thrush was originally described with its current binomial Turdus chiguanco. The species' further taxonomy is unsettled. The IOC, AviList, the Clements taxonomy, and the independent South American Classification Committee assign it these three subspecies: T. c. chiguanco d'Orbigny & Lafresnaye, 1837 T. c. conradi Salvadori & Festa, 1899 T. c. anthracinus Burmeister, 1858 However, as of late 2025 BirdLife International's Handbook of the Birds of the World (HBW) treats T. c. anthracinus as a separate species, the "sombre thrush". Clements does recognize some distinctions within the species by calling the first two subspecies the "Chiguanco Thrush (chiguanco/conradi)" and the third the "Chiguanco Thrush (anthracinus)". In addition, some authors have included T. c. conradi within T. c. chiguanco. This article follows the three-subspecies model. == Description == The Chiguanco thrush is 25 to 30 cm (9.8 to 12 in) long and weighs 75 to 120 g (2.6 to 4.2 oz). Adults of both sexes of the nominate subspecies T. c. chiguanco have a plain olive gray-brown head and upperparts, wings, and tail.…