Assertion: trumpeter swan's population | /r/HasProperty | stable
Facets:
value: between 2015
type: TEMPORAL
value: generally
type: DEGREE
value: between 1966
type: TEMPORAL
value: conservation overall
type: DEGREE
value: between 2006
type: TEMPORAL
Source sentences:
text: Their numbers fluctuate annually, particularly in the western breeding population, but overall populations were stable between 2006 and 2015.
text: Conservation Overall, Redhead populations were stable between 1966 and 2015, according to the North American Breeding Bird Survey.
text: The National Park Service's Southwest Alaska Network actively studies bald eagles in the area and finds populations to be generally stable.
text: The North American Breeding Bird Survey estimates that between 1966 and 2014 populations were stable or gradually increased, however, population trends are difficult to estimate as much of the Common Goldeneye breeding range occurs north of the survey's limits.