Assertion: starling's nest | /r/HasProperty | explained by the fact
Facets:
value: partly
type: DEGREE
Source sentences:
text: In the American redstart, nests parasitized by cowbirds were found to have a higher rate of predation, likely due in part to the loud begging calls by the cowbird nestling, but also partly explained by the fact that nests likely to be parasitized are also more likely to be predated.