Assertion: turkey vulture's population | /r/CapableOf | suffer estimated 50% decline
Facets:
value: from 1991
type: TEMPORAL
value: to 2001
type: TEMPORAL
Source sentences:
text: The populations of the northern foothills of the Harz Mountains (the most densely populated part of its range) suffered an estimated 50% decline from 1991 to 2001.