It seems to me that the first major push of "northern" birds happens a week or ten days later than 30 years ago - moving from the first week of November to near mid-month.
That said saw the first swans of the year Sunday as they checked out the snow geese decoys. Also saw the the first buffleheads of the year yesterday ; two pairs of with fully colored drakes. Both would indciate that the so-called migration is more or less on time; at least as compared to recent years.
Curt