Assertion: barn owl's site | /r/HasProperty | the factor
Facets:
Source sentences:
text: In some areas, it may be an insufficiency of suitable nesting sites that is the factor limiting barn owl numbers.
text: In some areas, it may be an insufficiency of suitable nesting sites that is the factor limiting barn owl numbers.
text: In some areas, it may be an insufficiency of suitable nesting sites that is the factor limiting barn owl numbers.