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My father who lives north of Duluth about 45 miles (Brimson) has been hearing a very distinct whistle. It occurs mostly just after dark and early dawn. It's a clear, loud and possibly slightly ascending whistle. If not ascending it is flat. Two or 3 in succession then nothing for a long while. No waver to the sound, nor is it raspy. It's a medium range whistle, as if you or I just puckered and blew, stopping the sound with our tongue. The sound origin is usually stationary, quite a few feet up in a tree, and once while the perpetrator was on the move, crossing the field above Dad's head, at a pretty good clip. My only guess to him was a saw - whet, but it's actually closer to a great crested flycatcher sound. I'm stumped. I can't seem to find it on my bird song CDs, So any help would be appreciated Chris Elmgren Gnesen township, Duluth, St. Louis County --part1_c8.35c7146c.2bb5022f_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable <HTML><FONT FACE=3Darial,helvetica><FONT SIZE=3D2 FAMILY=3D"SANSSERIF" FACE= =3D"Arial" LANG=3D"0">My father who lives north of Duluth about 45 miles (Br= imson) has been hearing a very distinct whistle. It occurs mostly just= after dark and early dawn.<BR> It's a clear, loud and possibly slightly ascending whistle. If not asc= ending it is flat. Two or 3 in succession then nothing for a long while.&nbs= p; No waver to the sound, nor is it raspy. It's a medium range whistle= , as if you or I just puckered and blew, stopping the sound with our tongue.= The sound origin is usually stationary, quite a few feet up in a tree= , and once while the perpetrator was on the move, crossing the field above D= ad's head, at a pretty good clip.<BR> My only guess to him was a saw - whet, but it's actually closer to a great c= rested flycatcher sound. I'm stumped.<BR> I can't seem to find it on my bird song CDs, So any help would be appreciate= d<BR> <BR> </FONT><FONT COLOR=3D"#000000" style=3D"BACKGROUND-COLOR: #ffffff" SIZE=3D3= FAMILY=3D"SANSSERIF" FACE=3D"Arial" LANG=3D"0">Chris Elmgren<BR> Gnesen township,<BR> Duluth, St. Louis County<BR> </FONT></HTML> --part1_c8.35c7146c.2bb5022f_boundary--