Assertion: plover's population | /r/HasProperty | revised to upward end of that scale
Facets:
value: possibly more
type: DEGREE
Source sentences:
text: The current population was estimated to be between 600 and 1,800 mature birds in 2006, but is being revised to the upward end of that scale, possibly more, following the discovery of the species' previously unknown main wintering grounds in Syria, where 1500 birds of all ages were encountered.