Assertion: owl | /r/HasProperty | medium-grayish
Facets:
value: often
type: DEGREE
Source sentences:
text: B. v. subarcticus shows a very high degree of clinal variation, ranging from in the Contiguous United States where owls are often medium-grayish and more heavily marked to the subarctic zone in Canada where very pale birds with almost non-existent markings are prominent.