Assertion: nuthatch's population | /r/CapableOf | decline by over 30%
Facets:
value: between 1966
type: TEMPORAL
value: between 2014
type: TEMPORAL
Source sentences:
text: Conservation Song Sparrows are widespread and common across most of the continent, but populations declined by over 30% between 1966 and 2014, according to the North American Breeding Bird Survey.