Have not dug deeply into this, but note that this year's species list is 38%
behind last year's, presuming the next couple of days add a normal amount of
year birds.
I'm presuming that migrant waves, at least here in central MN, are 8-10 days
behind the last few years; but don't have significant empirical data for
that at the moment.
Thoughts?
Al Schirmacher
Princeton, MN
Mille Lacs & Sherburne Counties
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