Adelaide’s Warbler

Adelaide's warbler (Setophaga adelaidae), or reinita mariposera (in Puerto Rican Spanish) is a bird endemic to the archipelago of Puerto Rico belonging to the genus Setophaga of the family Parulidae (New World warblers). == Taxonomy == The S. adelaidae complex was originally considered a single species, with three populations occurring in Barbuda, Puerto Rico and St. Lucia. Each of these populations were regarded as a subspecies, S.a. subita, S.a. adelaidae and S.a. delicata respectively. These subspecies were later elevated to species rank as the Barbuda warbler (Setophaga subita), the St. Lucia warbler (Setophaga delicata) and Adelaide's warbler. In 2011, the American Ornithologists' Union reclassified the Parulidae, which resulted in D. adelaidae being transferred to the genus Setophaga. The species is named after Maria Antoinette Adelaide Florentia del Carmen Swift Washburne (1829–1884), daughter of Robert Swift, the person who obtained the first specimen. == Description == Adelaide's warbler has gray upperparts with yellow underparts. The species has a yellow line above the eye and a white half-moon below it. Its average length is 12 cm (4.7 in) and its average weight is 7 g (0.25 oz). == Distribution and habitat == Adelaide's warbler occurs only in the main island of Puerto…