Siberian Tawny Owl

Strix aluco siberiae (Dementiev, 1934)

Description

Morphism in this subspecies is absent, only grey variation of colour. General colour is pale-grey, lighter than in haermsi. Dark pattern on upper- and underparts is less prominent and slimmer, white on basic background is well developed, especially on underparts. Wing length of males 280-300 (291), of females 301-307 (303) mm.

Distribution

On dispersal and in winter occurs in Ural River valley up to Atyrau. Three birds shot near Dokuchaevka village in December 1996.

References

Gavrilov E. I., Gavrilov A. E. "The Birds of Kazakhstan". Almaty, 2005. Э.И.Гаврилов. "Фауна и распространение птиц Казахстана". Алматы, 1999. В.К.Рябицев. "Птицы Урала, Приуралья и Западной Сибири". Екатеринбург. Изд-во Уральского университета, 2000.