(Posted by Mike North <[email protected]> via moumn.org)
Oh, the lowly black-capped chickadee. Loved by artists and appreciated by the
general
public, but totally disregarded by ornithologists. Well, chickadees do do
interesting things,
but these go noticed unless they are banded. And black-capped chickadees are
doing
something unusual now, I'm not just sure what it is, or what the magnitude of
it is.
I have been banding chickadees regularly at my home near Pillager for 22 years.
It is rare
to recapture a banded chickadee after a lapse of more than 2 years. Out of
some 1000-
1100 banded here, the following table lists the 11 longest lapses between
captures. Note
that four of the top 5 longest lapses occurred this year, and 3 of those were
this "fall"
(which I define as starting after this years crop of young have fledged, so
starting as early
as July).
My prediction is that there will be large numbers counted on the Christmas Bird
Counts this
year EXCEPT perhaps in the northern portions of their range.
Longest Lapses Between Black-capped Chickadee Encounters, Pillager, Minnesota
1999-
2020
Band Number Lapse Start Lapse End Lapse Days Years/Mo
2280-26903 7-May-02 7-Nov-08 2378 6Y 6 MO
119-88230 27-Oct-15 20-Jul-20 1728 4Y 9 MO
2410-73635 24-Nov-16 28-Oct-20 1434 3Y 11 MO
2620-84358 26-Nov-16 27-Oct-20 1431 3Y 11 MO
119-88207 13-May-17 23-Apr-20 1086 2Y 11 MO
2240-04644 22-Dec-01 26-Nov-04 1070 2Y 11 MO
2200-84757 15-Nov-03 9-Oct-06 1059 2Y 11 MO
2430-86779 28-Feb-08 8-Jan-11 1045 2Y 10 MO
2200-84785 14-Dec-02 23-Sep-05 1014 2Y 9 MO
2280-26958 22-May-03 2-Jan-06 956 2Y 7 MO
2260-45566 8-Nov-06 22-Jan-09 806 2Y 3 MO
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