About Limnothlypis swainsonii (Audubon, 1834)
Swainson's warbler, with the scientific name Limnothlypis swainsonii (Audubon, 1834), is a small songbird that is fairly large for a New World warbler, with generally undistinguished plumage. Fully grown adults measure 12.5–16 cm (4.9–6.3 in) in length, weigh between 11–20.5 g (0.39–0.72 oz), and have an average wingspan of 23 cm (9.1 in). Their upperparts are plain olive-brown, while their underparts are pale yellow-white. They have a whitish eyebrow stripe above the eye, and their crown is rusty brown. Unlike most New World warblers that show sexual dimorphism, male and female Swainson's warblers have no visible difference in appearance. This is an uncommon migratory bird. Its breeding habitat is mostly located in the flooded swamplands and canebrakes of the southeastern United States; less commonly, it can also be found in rhododendron thickets of the southern Appalachian Mountains. During winter, part of the population migrates southeast to the Greater Antilles, for example overwintering in Jamaica's Blue Mountains, while the other portion migrates southwest to the Yucatán Peninsula region to overwinter.
