Assertion: winged petrel | /r/HasAspect | dark tip
Facets:
value: to the bill
type: LOCATION
Source sentences:
text: Similar species: white-chinned petrels are very similar to Westland petrel and black petrel; apart from overall size (black petrel is smaller) and the absence of white on the chin, both Westland petrel and black petrel have a dark tip to the bill.