Typical Owls (Strigidae)

Boreal Owl (Aegolius funereus) - HBW 5, p. 228

French: Nyctale de Tengmalm German: Rauhfußkauz Spanish: Mochuelo Boreal
Other common names: Tengmalm’s Owl

Taxonomy: Strix funerea Linnaeus, 1758, Sweden.
Races pallens and magnus intergrade in Yakutsk area; these populations sometimes separated as race jakutorum. Nominate and pallens intergrade in W Asia. Proposed race sibiricus included within pallens. “Athene brama poikila” apparently referable to present species. Six subspecies recognized.

Subspecies and Distribution:

funereus (Linnaeus, 1758) - Europe from N Scandinavia S to Pyrenees and then E to Urals, excluding Caucasus.
caucasicus (Buturlin, 1907) - Caucasus; possibly this race or nominate in N Turkey.
pallens (Schalow, 1908) - W Siberia, Tien Shan, and S Siberia E through NE China (Heilongjiang) to Russian Far East (including Sakhalin).

See all 6 subspecies

funereus (Linnaeus, 1758) - Europe from N Scandinavia S to Pyrenees and then E to Urals, excluding Caucasus.
caucasicus (Buturlin, 1907) - Caucasus; possibly this race or nominate in N Turkey.
pallens (Schalow, 1908) - W Siberia, Tien Shan, and S Siberia E through NE China (Heilongjiang) to Russian Far East (including Sakhalin).
magnus (Buturlin, 1907) - NE Siberia, from Kolyma to Kamchatka.
beickianus Stresemann, 1928 - NW India (Lahul) and W China (Qinghai).
richardsoni (Bonaparte, 1838) - North America (from C Alaska S to W USA, and E through Canada to Labrador).