Assertion: trumpeter swan | /r/CapableOf | decline to near-extinction
Facets:
value: because of habitat loss
type: CAUSE
value: because of market hunting
type: CAUSE
value: by the early 20th century
type: TEMPORAL
Source sentences:
text: The Trumpeter once bred widely across North America, but by the early 20th century had declined to near-extinction because of market hunting and habitat loss.