Assertion: dove's population | /r/CapableOf | decline by about 15%
Facets:
value: between 1966
type: TEMPORAL
value: between 2015
type: TEMPORAL
Source sentences:
text: Conservation Mourning Doves are common across the continent and generally have prospered as people settled the landscape, however populations declined by about 15% between 1966 and 2015, according to the North American Breeding Bird Survey.