McGILL BIRD OBSERVATORY

WINTER POPULATION MONITORING

Weeks 11/12:  January 9-22, 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.

PICTURE OF THE WEEK:



With a bit more snow and colder temperatures at last, the American Goldfinches are
becoming a more regular sight on the nyjer seed feeders.  (Photo by Marcel Gahbauer)
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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 13 48 23

180

# net hours -- 81.0 15.0

14037.8

# birds banded / 100 net hours -- 93.9 93.3

66.5

Note: table does not include nocturnal banding (owls)

Observer:  Shawn Craik

Notes:  Weather has not permitted for any banding during these two weeks, and observed bird activity was relatively quiet aside from a lock of 20+ House Finches regularly observed around the feeder area. However, the lack of snow in week 11 allowed for walking a portion of the census trail, with the highlight being a group of 3 American Robins along the path behind the cabin.  Following the snowstorm on January 15, bird activity around the feeders appeared to pick up.  In particular, there was a marked increase in the number of juncos attending the feeder area.  The higher level of bird activity may have attracted the Northern Shrike that was seen perched near the A nets just west of the feeders.

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