Nominate and pallens intergrade in W Asia. Races pallens and magnus intergrade in Yakutsk area of E Russia, where population sometimes separated as race jakutorum. Race beickianus sometimes synonymized with caucasicus#R. Proposed race sibiricus (C Siberia to Sakhalin and NE China) included within pallens, but may be worthy of recognition. Study of extreme W Eurasian population (isolated in Pyrenees Mts) revealed no difference in genetic structure from N European population (Fennoscandia)#R. Form described as Athene brama poikila is apparently referable to present species#R. Six subspecies currently recognized.
Food and feeding
Status and conservation
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