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WINTER
POPULATION MONITORING |
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Weeks
14-15: January 30 - February 12, 2007 |
Welcome
to the McGill Bird Observatory weekly report. Click
here for a complete listing of our archives. Comments or questions are welcome at mbo@migrationresearch.org.
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PICTURE OF
THE WEEK: |
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One of the ever-ravenous Black-capped Chickadees returning to
the green tube feeder
for more sunflower seeds on February 7. (Photo by Barbara
Frei)
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THIS
WEEK |
THIS
WINTER |
2007
TOTAL |
SITE
TOTAL |
| #
birds (and species) banded |
-- |
76 (9) |
14 (4) |
9332 (96) |
| #
birds (and species) repeat |
-- |
26 (6) |
5 (2) |
1554 (52) |
| #
birds (and species) return |
-- |
5 (1) |
2 (1) |
202
(26) |
| #
species observed |
16 |
48 |
25 |
180 |
| #
net hours |
-- |
81.0 |
15.0 |
14037.8 |
| #
birds banded / 100 net hours |
-- |
93.9 |
93.3 |
66.5 |
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Note: table does
not include nocturnal banding (owls) |
Observers:
Sophie Cauchon, Shawn Craik, Barbara Frei, Marie-Anne Hudson, Andre
Pelletier
Notes:
Frigid temperatures throughout this two-week period continued to
postpone banding activities. There were no major changes in
species composition near the feeder area, as Black-capped Chickadees,
Slate-coloured Juncos, American Tree Sparrows, and Mourning Doves were
the usual suspects at and under the feeders. However, observation
highlights included the regular viewing of an adult Red-tailed Hawk and
an extremely vocal group of 20-25 House Finches. Also of note was
the surprising absence of northern Cardinals - only a single male was
observed throughout the two-week period.
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