(拉丁文)Linnaeus, C. Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata.. Holmiae. (Laurentii Salvii). 1758: 118. U. atra, rostro pedibusque rubris
(拉丁文)Tunstall, Marmaduke. Ornithologia Britannica: seu Avium omnium Britannicarum tam terrrestrium, quam aquaticarum catalogus, sermone Latino, Anglico et Gallico redditus. London, J. Dixwell. 1771: 2.
Rand, Austin Loomer; Vaurie, Charles. A new chough from the highlands of Abyssinia. Bulletin of the British Ornithologists’ Club. 1955, 75: 28. 引文使用过时参数coauthors (帮助)
Gould, John. [Two new species of hummingbird, a new Fregilus from the Himalayas and a new species of Prion]. Proceedings of the Zoological Society of London. 1862: 125.
Milne-Edwards, Alphonse; Lartet, Édouard & Christy, Henry (eds.). Reliquiae aquitanicae: being contributions to the archaeology and palaeontology of Pèrigord and the adjoining provinces of Southern France. London : Williams. 1875: 226–247. 引文使用过时参数coauthors (帮助)
(法文) Mourer-Chauviré, Cécile. Les oiseaux du Pléistocène moyen et supérieur de France. Documents des Laboratoires de Géologie de la Faculté des Sciences de Lyon n° 64. 1975.