Assertion: crane's population | /r/HasProperty | migratory birds
Facets:
value: mostly
type: DEGREE
Source sentences:
text: Resident populations, not migratory birds, cannot choose secure breeding habitat.
text: The population of red-crowned cranes in Japan is mostly non-migratory, with the race in Hokkaidō moving only 150 km (93 mi) to its wintering grounds.
text: Resident populations, not migratory birds, cannot choose secure breeding habitat.