Flock of flying migrating geese
honking so gleefully passed
as though no time to waste,

Saying goodby so loudly thanking
everyone that had fed them and
stopped by to admire their offspring
and goslings when all in a row

Now is time to move back to the only
home they knew, and settle down
after their long and bitter journey
sun was setting and still another flock
was casting a black vee formed shadow
of natures calling......

Bonnie Collins

http://www.poemhunter.com/poem/nature-s-calling/