Closely related to C. rufus, C. temminckii and C. coromandelicus. Sometimes considered to include C. rufus. Until recently considered conspecific with C. somalensis (which see). Some intergradation between races exsul, cursor and bogolubovi. Canary Is population sometimes distinguished as race bannermani, but separation from nominate cursor dependent on size alone and this probably not significant; proposed race dahlakensis (described from Dahlak Is, in Red Sea off Eritrea) nowadays included in nominate. Three subspecies recognized.
Food and feeding
Status and conservation
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