McGILL BIRD OBSERVATORY

WINTER POPULATION MONITORING

Week 10:  January 2-8, 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:



Last week we wrote that winter has arrived at last; the photo above shows that it quickly
disappeared again!  Not only is the landscape entirely brown and green, but the male
American Goldfinches are already starting to acquire their black caps for spring!
(Photo by Marcel Gahbauer)

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  THIS WEEK THIS WINTER 2007 TOTAL SITE TOTAL
# birds (and species) banded 14 (4) 76 (9) 14 (4)

9332 (96)

# birds (and species) repeat 5 (2) 26 (6) 5 (2)

1554 (52)

# birds (and species) return 2 (1) 5 (1) 2 (1)

202 (26)

# species observed 21 48 21

180

# net hours 15.0 66.0 15.0

14037.8

# birds banded / 100 net hours 93.3 93.9 93.3

66.5

Note: table does not include nocturnal banding (owls)

Banders-in-charge:  Marcel Gahbauer, Marie-Anne Hudson
Assistants:  Jean Beaudreault, Natalia Castellanos, Sophie Cauchon, Victoria Chang, Val Francella, Barbara Frei, Sabrina Gosselin, Betsy Mcfarlane, Andre Pelletier, Greg Rand, Sabrina Richard-Lalonde, Katleen Robert

Notes:  We actually managed to get our two days of banding in this week thanks to the continued unseasonably warm weather this winter has provided thus far. Gusting winds and the lack of snow, however, made our total catch somewhat modest. In fact on Sunday, there were six times as many volunteers on site than birds banded!   On the other hand, under calmer conditions on Wednesday, the birds outnumbered people by a 12:1 ratio.  We didn't mind the Sunday outcome though, because we were outside on such a beautiful day, and took advantage of the quiet nets to walk around the site and spot our local young male Cooper's Hawk hanging out by the D nets. The birds at the feeders were unimpressed when he buzzed them later in the morning.  American Goldfinches (finally arriving in good numbers) and Black-capped Chickadees (surprisingly many 'new' birds) were this week's top banded species, with six each.

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