interior lights - especially upper storiesWhen
should you do it?Between midnight and dawn
Spring: From March 15 to May 31Fall: From August 15 to October 31
https://www.dnr.state.mn.us/eco/nongame/projects/lightsout.html
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Subject: [mou-net] Migration Thursday night
From
A significant migration of songbirds and other bird species is predicted for
Minnesota tonight, Thursday, Sept. 3, by the Cornell Lab of Ornithology.
The lab calls this a high-intensity migration, hundreds of thousands to
millions of birds depending on location. The map for the Twin Cities and
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