Is there any evidence that fall warbler migration is better near bodies of
water than elsewhere?
Over the years, have noted that a number of my spring "migrant traps" are
less effective in the fall, while secondary locations, near lakes & rivers,
can be excellent.
Father Hennepin State Park would serve as an example - never more than OK in
the spring - sometimes spectacular in the fall. Also have made similar
observations along the Rum River.
Thanks.
Al Schirmacher
Princeton, MN
Mille Lacs & Sherburne Counties
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