Black-throated Sparrow

The black-throated sparrow (Amphispiza bilineata) is a species of bird in the family Passerellidae, the New World sparrows. It is found in Mexico and the United States. == Taxonomy and systematics == The black-throated sparrow was formally described in 1850 with the binomial Emberiza bilineata. Elliott Coues erected the new genus Amphispiza in 1874 with the black-throated sparrow as the type species. Several other species including the five-striped sparrow (Amphispizopsis quinquestriata) and what are now Bell's sparrow (Artemisiospiza belli) and the sagebrush sparrow (Artemisiospiza nevadensis) were previously also assigned to Amphispiza. These reassignments left the black-throated sparrow as the only member of the genus. They were adopted by the American Ornithological Society (AOS), the IOC, the Clements taxonomy, and AviList. However, as of late 2025 BirdLife International's Handbook of the Birds of the World (HBW) retains the five-striped sparrow in Amphispiza with the black-throated. The black-throated sparrow's further taxonomy is unresolved. The IOC, AviList, and HBW assign it these nine subspecies: The Clements taxonomy adds a tenth subspecies, A. b. carmenae (Van Rossem, 1945), that the other systems include in A. b. belvederei. This article follows the nine-subspecies model with a few notes about A. b. pacifica included. == Description…