Rufous-backed Wren

The rufous-backed wren (Campylorhynchus capistratus) is a songbird of the family Troglodytidae. It is a resident breeding species from southwest Mexico to northwestern Costa Rica. == Taxonomy and systematics == What is now the rufous-backed wren was previously treated as six of the eight subspecies of rufous-naped wren (Campylorhynchus rufinucha). A 2009 publication proposed that Campylorhynchus rufinucha (sensu lato) be split into three species and the International Ornithological Committee (IOC) accepted the splits. What had been C. r. humilis was elevated to species status as Sclater's wren. The reduced C. rufinucha received the new English name Veracruz wren and the other six subspecies became subspecies of rufous-backed wren. BirdLife International (BLI) has implemented the split but retains the English name rufous-naped wren for C. rufinucha. However, the North American Classification Committee of the American Ornithological Society (NACC/AOS) and the Clements taxonomy have not accepted the split as of early 2021. The six subspecies of rufous-backed wren accepted by the IOC are: C. c. nigricaudatus Nelson (1897) C. c. capistratus Lesson (1842) C. c. xerophilus Griscom (1930) C. c. castaneus Ridgway (1888) C. c. nicaraguae Miller, W. & Griscom (1925) C. c. nicoyae Phillips (1986) The last of these has not…