Assertion: petrel's plumage | /r/HasProperty | hornby's storm petrel
Facets:
Source sentences:
text: Two species have different plumage entirely, Hornby's storm petrel, which has white undersides and facial markings, and the fork-tailed storm petrel, which has pale grey plumage.
text: Two species have different plumage entirely, the Hornby's Storm-petrel which has white undersides and facial markings, and the Fork-tailed Storm-petrel which has pale grey plumage.