Assertion: petrel's nest | /r/HasProperty | solitary
Facets:
Source sentences:
text: Breeding occurs in the southern winter (beginning in April); nests are either solitary or in small colonies, located in burrows or aboveground among boulders or low vegetation.
text: Breeding occurs in the southern winter (beginning in April); nests are either solitary or in small colonies, located in burrows or aboveground among boulders or low vegetation.