Great Grey Owl (Strix nebulosa) [XC715542]
by Bruce Lagerquist from Okanogan, Okanogan County, Washington, United States (call, female call from nest)
Great Grey Owl (Strix nebulosa) [XC715539]
by Bruce Lagerquist from Okanogan, Okanogan County, Washington, United States (call, female call from nest)
Subspecies
Population from Kentei Mts, in northern Mongolia has been separated as subspecies elisabethae, but doubtfully separable from lapponica.
The following 2 subspecies are recognised:
nebulosa Forster, 1772 - North America, from central Alaska east to south-western Quebec, south to east-central California, northern Idaho and north-eastern Minnesota.
lapponica Thunberg, 1798 - Eurasia, from Fenno-Scandia east to western Koryakland, south to Lithuania, northern Mongolia, north-eastern China and northern Sakhalin.