Date: 10/30/17 6:31 am
From: todd Entrikin <shmodd_...>
Subject: [Tweeters] Re: Owl Vocalization
I have observed Northern Pygmy Owls making that sound when moving to a new location or while in flight, so probably a territorial announcement as Bruce mentioned. Here is a video I found on Youtube (not mine) of the same vocalization again.

--Todd Entrikin

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