Carol,
Perhaps they were American Toads. Long, extended musical trill.

~~~~~~~~~~~~~~~~~~~~~~~~
Steve Faccio
Conservation Biologist
Vermont Center for Ecostudies
PO Box 420
Norwich, VT 05055

Physical Address
20 Palmer CT
White River Junction, VT 05001
802-649-1431 xt.3
[log in to unmask]
www.vtecostudies.org
~~~~~~~~~~~~~~~~~~~~~~~~


On 5/12/2016 12:00 AM, VTBIRD automatic digest system wrote:
> Date:    Wed, 11 May 2016 09:12:12 -0400
> From:    Carol R Heffer<[log in to unmask]>
> Subject: Identification question
>
> I was walking in Symanski Park Monday morning and heard a sound I at first thought was a small machine. I realized it was a bird trilling. It was joined by a second at a lower pitch. It went on for a long time. I tried to find it on my Merlin app, to no avail.  Anyone know what it might be?
>
> Carol
>