Assertion: crane's flock | /r/HasProperty | observed through the kurram valley
Facets:
value: in the early 1900s
type: TEMPORAL
value: on spring migration
type: TEMPORAL
Source sentences:
text: A small population of white storks winters in India and is thought to derive principally from the C. c. asiatica population as flocks of up to 200 birds have been observed on spring migration in the early 1900s through the Kurram Valley.