Oncostoma cinereigulare (P.L.Sclater, 1857)

Homonyms: Oncostoma cinereigulare (P.L.Sclater, 1857)
Common names: Aschkehl-Krummschnabel in 德语; Bec-en-arc cendré in 法语; Beccocurvo settentrionale in 意大利语; Graukehl-Krummschnabeltyrann in 德语; Krumnæbstyran in 丹麦语; Mexicaanse Krombektiran in 荷兰语; Mosquerito Piquicurvo Norteño in 西班牙语; Mosquero pico curvo in 西班牙语; Mosquero pico curvo in 西班牙语; Mosquero pico curvo in 西班牙语; Mosquero pico curvo in 西班牙语; Nordbuetyrann in 挪威语; Northern Bentbill in 英语; Northern Bentbill in 英语; Northern Bentbill in 英语; Northern Bentbill in 英语; Northern Bentbill in 英语; Northern Bentbill in 英语; Northern Bentbill in 英语; Northern Bentbill in 英语; horogcsőrű tirannusz in 匈牙利语; koukkunapsija in 芬兰语; muchárčik zelenkavý in 斯洛伐克语; nordlig krumnäbbstyrann in 瑞典语; tirà becut septentrional in 加泰罗尼亚–瓦伦西亚语; tyránek křivozobý in 捷克语; zgiętodziobek północny in 波兰语; šiaurinis lenktasnapis tironas in 立陶宛语; Северный крючкоклювый мухоед in 俄语; カマハシタイランチョウ in 日语; 北弯嘴霸鹟 in 中文; 北方彎嘴雀 in 中文; Northern Bentbill in 英语; nordbuetyrann in 挪威博克莫尔语

Echeverry-Galvis, M.A., O. Acevedo-Charry, J. E. Avendaño, C. Gómez, F.G. Stiles, F.A. Estela & A.M. Cuervo. 2022. Lista oficial de las aves de Colombia 2022: Adiciones, cambios taxonómicos y actualizaciones de estado. Ornitología Colombiana 22: 25-51 https://doi.org/10.59517/oc.e548
Gill, Frank, and Minturn Wright, 2006: null. Birds of the World: Recommended English Names. ix + 259.
ITIS.gov 2023 from the Integrated Taxonomic Information System (ITIS) on-line database https://www.itis.gov