Editing Common kingfisher (section)

===Geographical variation===
{{More citations needed section|date=January 2021}}
There are seven subspecies differing in the hue of the upperparts and the intensity of the rufous colour of the underparts; size varies across the subspecies by up to 10%. The races resident south of the [[Wallace Line]] have the bluest upperparts and partly blue ear-patches.<ref name= Fry/><ref name=ioc>{{cite web| editor1-last=Gill | editor1-first=Frank | editor1-link=Frank Gill (ornithologist) | editor2-last=Donsker | editor2-first=David | year=2017 | title=Rollers, ground rollers & kingfishers | work=World Bird List Version 7.2 | url=http://www.worldbirdnames.org/bow/rollers/ | publisher=International Ornithologists' Union | access-date=17 May 2017 }}</ref>
* ''A. a. ispida'' <small>Linnaeus, 1758</small>. Breeds from [[Ireland]], [[Spain]] and southern [[Norway]] to [[Romania]] and western [[Russia]] and winters south to [[Iraq]] and southern [[Portugal]].
* ''A. a. atthis''. Breeds from northwestern Africa and southern [[Italy]] east to [[Afghanistan]], [[Kashmir region]], northern [[Xinjiang]], and [[Siberia]]; it is a winter visitor south to [[Israel]],<ref>Arnold, Paula: ''Birds of Israel,'' (1962), Shalit Publishers Ltd., Haifa, Israel. p. 12</ref> northeastern [[Sudan]], [[Yemen]], [[Oman]] and [[Pakistan]]. Compared to ''A. a. ispida'', it has a greener crown, paler underparts and is slightly larger.
* ''A. a. bengalensis'' <small>[[Samuel Gottlieb Gmelin|Gmelin]], 1788</small>. Breeds in southern and eastern Asia from [[India]] to [[Indonesia]], [[China]], [[Korea]], [[Japan]] and eastern [[Mongolia]]; winters south to Indonesia and the [[Philippines]]. It is smaller and brighter than the European races.
* ''A. a. taprobana'' <small>[[Otto Kleinschmidt|Kleinschmidt]], 1894</small>. Resident breeder in [[Sri Lanka]] and southern India. Its upperparts are bright blue, not green-blue; it is the same size as ''A. a. bengalensis''.
* ''A. a. floresiana'' <small>[[Richard Bowdler Sharpe|Sharpe]], 1892</small>. Resident breeder from Bali to Timor. Like ''A. a. taprobana'', but the blues are darker and the ear-patch is rufous with a few blue feathers.
* ''A. a. hispidoides'' <small>[[René-Primevère Lesson|Lesson]], 1837</small>. Resident breeder from [[Sulawesi]] to [[New Guinea]] and the islands of the western [[Pacific Ocean]]. Plumage colours are deeper than in ''A. a. floresiana'', the blue on the hind neck and rump is purple-tinged and the ear-patch is blue.
* ''A. a. solomonensis'' <small>[[Walter Rothschild, 2nd Baron Rothschild|Rothschild]] and [[Ernst Hartert|Hartert]], 1905</small>. Resident breeder in the [[Solomon Islands]] east to [[San Cristobal (Solomon Islands)|San Cristobal]]. The largest southeast Asian subspecies, it has a blue ear-patch and is more purple-tinged than ''A. a. hispidoides'', with which it interbreeds.