Sooty-capped Chlorospingus

The sooty-capped chlorospingus (Chlorospingus pileatus) or sooty-capped bush tanager, is a small passerine bird in the family Passerellidae, the New World sparrows. It is found in Costa Rica and Panama. == Taxonomy and systematics == The sooty-capped chlorospingus was formally described in 1865 with its current binomial Chlorospingus pileatus. At the time the Chlorospingus species were members of the family Thraupidae, the "true" tanagers, though their positions within the family were uncertain. Based on studies published in 2002, 2003, and 2007, beginning in 2010 taxonomic systems transferred Chlorospingus to its present sparrow family. The Chlorospingus species were originally called "bush tanagers" or "bush-tanagers". Beginning in 2013 systems began changing the English name of the members of the genus to "chlorospingus" because they were no longer considered tanagers. The sooty-capped chlorospingus' further taxonomy is unresolved. The IOC, AviList, and BirdLife International's Handbook of the Birds of the World treat it as monotypic. However, as of late 2025 the Clements taxonomy recognizes a second subspecies, C. p. diversus (Griscom, 1924). In addition to the systems that do not recognize diversus, the account in the Cornell Lab of Ornithology's Birds of the World says that it appears inseparable from the nominate subspecies. This…