Great Grey Owl (Strix nebulosa) [XC325026]
by Jarek Matusiak from V\u00e4stra G\u00f6talands l\u00e4n, Poland (begging call, song)
Great Grey Owl (Strix nebulosa) [XC46232]
by Matthias Feuersenger from V\u00e4ster\u00e5s, V\u00e4stmanland, 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.