Date: 5/11/18 1:58 pm
From: Michael Lamson <michael.a.lamson...>
Subject: [cobirds] Re: 2 Bitterns, Sawhill/Walden
When I was growing up in New Hampshire, old-timers called this bird
"stake-driver". At the right distance, the call sounded like "*oonk*-ka-
*oonk*". The "oonks" sound like a distant sledge hammer hitting a wooden
stake, but I don't know what the "ka" was thought to be. I haven't heard
this call in Colorado, so I will be there at 0700 tomorrow. Thanks for the

On Friday, May 11, 2018 at 11:32:07 AM UTC-6, Kit Basom wrote:
> Enjoyed watching and listening to two American bitterns at Sawhill/Walden,
> between 7:15 and 7:50 this morning. The song always reminds me of an
> old-fashioned hand pump or perhaps broken plumbing. I've been hearing it
> occasionally in the area since May 5, but today was the first time I saw
> the birds, stretched out, beaks pointed skyward (except when singing).
> --Kit Basom

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