* {{cite book |last=Cocker |first=Mark |coauthors=Mabey, Richard |title=Birds Britannica |year=2005 |location=London |publisher=Chatto & Windus |isbn=978-0-7011-6907-7}}
* {{cite book |last = Coward |first = Thomas Alfred|coauthors= |title = The Birds of the British Isles and Their Eggs (two volumes)|year = 1930|publisher = Frederick Warne |isbn = }} Third edition, volume 1.
* {{cite book|last = Fry |first = C. Hilary |coauthors= Fry, Kathie; Harris, Alan|title = Kingfishers, Bee-eaters and Rollers |year =1999 |location = London|publisher = Christopher Helm |isbn =978-0-7136-5206-2}}
* {{cite book |last=Linnaeus |first=C |authorlink=Carolus Linnaeus |title=Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata |publisher=Holmiae. (Laurentii Salvii) |year=1758}} {{la icon}}
* {{cite book|last=Sinclair |first=Sandra |title = How Animals See: Other Visions of Our World |year= 1985|publisher=Croom Helm |location=Beckenham, Kent |isbn=978-0-7099-3336-6 |pages= }}
* {{cite book |last = Snow |first = David |coauthors= Perrins, Christopher M (editors)|title = [[The Birds of the Western Palearctic]] (BWP) concise edition (2 volumes) |publisher = Oxford University Press |year = 1998|location =Oxford |isbn = 978-0-19-854099-1 }}
