Bibliografia
- Zygmunt, Bocheński: Ptaki kopalne. Kraków: Pro Natura, 1996. ISBN 83-85222-50-2.
- Clements, James F.: The Clements Checklist of Birds of the World. 6th edition. Ithaca: Cornell University Press, 2007. ISBN 978-0-8014-4501-9.
- Dickinson, Edward C.: The Howard and Moore Complete Checklist of Birds of the World. 3th edition. Cornell University Press, 2003. ISBN 0691117012.
- Linnaeus, Carolus: Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I-III. 1758.