[Tweeters] Preventing bird collisions

c.boatsman at comcast.net c.boatsman at comcast.net
Sun Oct 20 15:38:46 PDT 2019

There was a list last week about how to prevent bird collisions with windows. I watched the video. I think the type of pen used to draw the lines on the window was not specified. Anyone know? Also brief review of how to mark the windows would be appreciated. Have others tried it? Thank you.

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