Assertion: barn owl's prey | /r/HasProperty | scarce
Facets:
Source sentences:
text: Barn Owls rely on a boom-or-bust breeding strategy where females will lay more eggs than the pair is likely to be able to support, and when prey is scarce, breeding pairs suffer heavy losses and high rates of nest failure.
text: Barred Owls don’t migrate, and most will remain in a single area their whole lives, though on rare occasions they may wander farther in search of food during winters when prey is scarce.
text: Migration: More northerly populations may drift south during late autumn if prey are scarce.
text: Sometimes they are unable to hunt due to unfavourable weather conditions, such as heavy rain, strong wind or deep snow or if prey is scarce.