Great Grey Owl (Strix) [XC655482]
by Lars Edenius from Vindeln, Vindeln Municipality, V\u00e4sterbottens l\u00e4n, Sweden (song)
Great Grey Owl (Strix nebulosa) [XC410628]
by Bruce Lagerquist from Tingsryd busstation (near Tingsryd), Tingsryd Municipality, Kronobergs l\u00e4n, Sweden (song)
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.