I don't know of any population surveys for small rodents in Canada....but the 1854 Treaty Authority does small rodent surveys in northeastern Minnesota in order to predict populations of Fisher and Marten. But, I think it would be almost impossible to predict owl irruptions without data from north of the border.
http://www.1854treatyauthority.org/surveys/small-mammal-survey.html Sparky Stensaas 2515 Garthus Road Wrenshall MN 55797 218.341.3350 [email protected] www.ThePhotoNaturalist.com www.KollathStensaas.com www.SaxZim.org ________________________________ From: Minnesota Birds <[email protected]> on behalf of Jason Frank <[email protected]> Sent: Friday, October 19, 2018 7:06 PM To: [email protected] Subject: [mou-net] Seeking Info on Vole Cycle, Winter Owl Potential Does anyone know of any information or data pertaining to the present state of the Arctic vole cycle, and/or any info/predictions of whether there might be a significant southward movement of northern owl species (Snowies in particular) this winter? I know it's incredibly balmy up there now, with a Nino winter ahead of us, so it seems reasonable to expect they might take their time getting here. I'm curious because it might be fun to do a western MN/borderland winter owl field trip. Thanks, -- Jason Frank Ortonville, MN ---- Join or Leave mou-net: https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.umn.edu%2Fcgi-bin%2Fwa%3FSUBED1%3Dmou-net&data=02%7C01%7C%7C2d1508614d63484fa6a708d6361ff4da%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636755908217813155&sdata=VhK2TZp0%2Bm47dt1GV0T%2FCDvqiKSI7NXEzE98XHf9GNw%3D&reserved=0 Archives: https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.umn.edu%2Farchives%2Fmou-net.html&data=02%7C01%7C%7C2d1508614d63484fa6a708d6361ff4da%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636755908217813155&sdata=7BxDCBT%2FK9GFGTUK3pu0pPrT0Xdch%2BTMDu6umIPDYm8%3D&reserved=0 ---- Join or Leave mou-net: http://lists.umn.edu/cgi-bin/wa?SUBED1=mou-net Archives: http://lists.umn.edu/archives/mou-net.html
