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Lesser
Slave
Lake Bird
Observatory
Beaverhill
Bird
Observatory
Inglewood
Bird
Sanctuary
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Bird Studies
Canada
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Three bird observatories have been established in
Alberta, as part of the Canadian Migration Monitoring Network, to
monitor populations of songbirds breeding in the boreal forests of
northern Canada. Birds are counted daily throughout spring or fall
migration to estimate changes in populations that could be related to
activities such as logging practices in the boreal forests, where bird
populations are difficult to count directly. Obtaining reliable
estimates of population trends requires many years of data but, now
that all of these stations have at least 5 years of data, we have
calculated annual population indices for most of the more frequently
counted species. For details on the results of these analyses,
download a copy of the complete report in a format suitable for
printing. For further information on the Canadian
Migration Monitoring Network, check its web page.
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Full Report (471 K PDF File; Adobe Acrobat Reader Required)
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