Assertion: woodpecker's population | /r/AtLocation | the fall
Facets:
value: south
type: LOCATION
value: southwards
type: MANNER
value: in north america
type: LOCATION
Source sentences:
text: More northerly populations of Lewis's woodpecker, northern flicker, Williamson's sapsucker, red-breasted sapsucker and red-naped sapsucker all move southwards in the fall in North America.
text: As the range map shows, some northern populations of Red-headed Woodpecker migrate south in the fall, but many populations remain in one place year-round, especially if acorns, beechnuts, and other nut crops are abundant.