PHOTOGRAPHY BY DEB HIRT
Featuring images from "Life at Boomer Lake" and including "Birding Today"
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Showing posts with label
birds and winter
.
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Showing posts with label
birds and winter
.
Show all posts
Thursday, December 28, 2017
Warming Secrets: When Physiology Matters to Birds
http://www.cbc.ca/news/canada/calgary/how-birds-survive-winter-1.4465936
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