Last week I went for a short kayak paddle on Union Bay. In the marsh
around the Fill, I heard a call that went "yelp yelp yelp, whoop whoop
whoop" where the first note was only slightly high (around the top of the
middle octave of a piano, maybe) and the second note was quite low,
probably a couple of octaves lower. What might that have been?

Mike Wagenbach
Seattle
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