Shorter
days in mid to late summer trigger the hummer's natural urge to head
south. After all, less sun means colder temperatures and fewer flowers
and insects to eat. (A bird doesn't know that. It just wants to eat
and go!) A pre-migration feeding frenzy finds it fighting furiously
for food. Even mothers and their young become rivals! It gets even
more intense as hungry hummers from up north pass through in August
and September. |
Click
for a larger photo, and look closely! One young male is yanking
on the
other one's tail. Fueling up for a long journey south is serious
business!
Photo:
Russ Thompson |
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