In late November the Swimming Ducks disappeared, signalling the time for birds to fly south and hibernation to begin.
(the Swimming Ducks; disappeared; T:In late November) (the Swimming Ducks; signalling; the time for birds to fly south and hibernation) (birds; to fly; south and hibernation)
the Swimming Ducks the Swimming Ducks birds
disappeared signalling to fly
T:In late November
the time for birds to fly south and hibernation
south and hibernation