Assertion: crane's population | /r/CapableOf | number about 53 birds
Facets:
value: as of december
type: TEMPORAL
Source sentences:
text: As of December 18, 2006, this population numbered about 53 birds, but a decision was made not to introduce further birds into this population until problems with high mortality and lack of reproduction are resolved, and as of May 2011, the population had shrunk to 20 cranes.