==Species==* Eurasian pygmy owl, " Glaucidium passerinum"* Collared owlet, " Glaucidium brodiei"* Pearl-spotted owlet, " Glaucidium perlatum"* Northern pygmy owl, "Glaucidium gnoma"** Northern pygmy owl, "Glaucidium (gnoma) californicum"** Mountain pygmy owl, "Glaucidium gnoma gnoma"** Guatemalan pygmy owl, "Glaucidium (gnoma) cobanense"** Cape pygmy owl, " Glaucidium (gnoma) hoskinsii"* Costa Rican pygmy owl, " Glaucidium costaricanum"* Cloud-forest pygmy owl, " Glaucidium nubicola"* Andean pygmy owl, " Glaucidium jardinii"* Yungas pygmy owl, " Glaucidium bolivianum"* Colima pygmy owl, " Glaucidium palmarum"* Tamaulipas pygmy owl, " Glaucidium sanchezi"* Central American pygmy owl, " Glaucidium griseiceps"* Subtropical pygmy owl, " Glaucidium parkeri"* Amazonian pygmy owl, " Glaucidium hardyi"* Pernambuco pygmy owl, "Glaucidium mooreorum"* East Brazilian pygmy owl, " Glaucidium minutissimum"* Ferruginous pygmy owl, " Glaucidium brasilianum"** Ridgway's pygmy owl, "Glaucidium (brasilianum) ridgwayi" (species or subspecies)** Tucuman pygmy owl, " Glaucidium (brasilianum) tucumanum" (species or subspecies)* Pacific pygmy owl, " Glaucidium peruanum"* Austral pygmy owl, " Glaucidium nana"* Cuban pygmy owl, " Glaucidium siju"* Red-chested owlet, " Glaucidium tephronotum"* Sjöstedt's barred owlet, " Glaucidium sjostedti"* Asian barred owlet, " Glaucidium cuculoides"* Javan owlet, " Glaucidium castanopterum"* Jungle owlet, " Glaucidium radiatum"* Chestnut-backed owlet, " Glaucidium castanonotum"* African barred owlet, " Glaucidium capense"** Ngami owlet, " Glaucidium (capense) ngamiense"** Scheffler's owlet, " Glaucidium (capense) scheffleri"* Albertine owlet, " Glaucidium albertinum"* Chestnut owlet, " Glaucidium castaneum"* †"Glaucidium kurochkini"The supposed prehistoric species ""Glaucidium" dickinsoni" is now recognized as a burrowing owl, probably a paleosubspecies "providentiae".
==Reference==* Stiles and Skutch "A guide to the birds of Costa Rica" ISBN 0-8014-9600-4* Hilty "Birds of Venezuela" ISBN 0-7136-6418-5* "National Geographic Field Guide to the Birds of North America" ISBN 0-7922-6877-6* Mullarney, Svensson, Zetterstrom and Grant "Collins Bird Guide" ISBN 0-00-219728-6