<div dir="ltr"><div>When in areas where both species are expected, I have definitely heard alarm calls that I would have sworn was mountain chickadee until I set eyes on the bird and watched that sound come from a black-capped. Several of those experiences have made me very reluctant to categorise them by heard only on e-bird.</div><div><br></div><div>Louise Rutter</div><div>Kirkland</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Tue, Feb 24, 2026 at 8:11 PM Eric Ellingson via Tweeters <<a href="mailto:tweeters@u.washington.edu">tweeters@u.washington.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hello,</div><div><br></div><div>I'm wondering if anyone knows much about Black-capped Chickadees sounding like Mountain Chickadees. I seem to remember reading somewhere that if the BCCH are raised near the MOCH they can pick up a "dialect". The reason I'm asking is because two of the Bird Sound Identification apps have given me MOCH when I definitely don't see them around in the Blaine, WA area. I'm not saying it is improbable, just not expected. </div><div>Merlin has done this before and recently BirdNET gives a 89% confidence rating. I have a good sonogram showing the sound. Anyway, ideas? Anyone wanting the recording can DM me.</div><div><br></div><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div><div><table cellspacing="0" cellpadding="0" border="0" width="500" style="margin:1em 0px 0px;padding:0px;font-family:Calibri,Candara,Segoe,"Segoe UI",Optima,Arial,sans-serif;font-size:15px;color:rgb(75,101,57);line-height:1.35;width:500px"><tbody><tr><td style="vertical-align:top;width:1%"><div style="width:116px;height:116px;margin-right:10px;border-radius:5px"></div></td><td style="vertical-align:top"><table cellspacing="0" cellpadding="0" border="0" style="margin:0px;padding:0px;font-family:Calibri,Candara,Segoe,"Segoe UI",Optima,Arial,sans-serif;font-size:15px;color:rgb(75,101,57);line-height:1.35"><tbody><tr><td><span style="margin:0px;padding:0px;font-family:Calibri,Candara,Segoe,"Segoe UI",Optima,Arial,sans-serif;line-height:1.35;color:rgb(9,82,123);font-size:17px;font-weight:bolder">Eric Ellingson</span></td></tr><tr><td><div style="margin-top:2px;margin-bottom:0px"></div></td></tr><tr><td><div style="margin-top:3px;margin-bottom:0px;line-height:1.2"><a href="tel:360-820-6396" style="margin:0px;padding:0px;font-family:Calibri,Candara,Segoe,"Segoe UI",Optima,Arial,sans-serif;font-size:15px;line-height:1.35;color:rgb(49,29,201);text-decoration:none" target="_blank">360-820-6396</a> <span><br></span><a href="mailto:esellingson@gmail.com" style="margin:0px;padding:0px;font-family:Calibri,Candara,Segoe,"Segoe UI",Optima,Arial,sans-serif;font-size:15px;line-height:1.35;color:rgb(49,29,201);text-decoration:none" target="_blank">esellingson@gmail.com</a></div></td></tr><tr><td><div style="margin-top:8px;line-height:1.2"><div style="margin-top:3px"><span style="margin:0px;padding:0px;font-family:Calibri,Candara,Segoe,"Segoe UI",Optima,Arial,sans-serif;font-size:15px;color:rgb(75,101,57);line-height:1.35"><a href="https://www.flickr.com/photos/ericellingson/" style="margin:0px;padding:0px;font-family:Calibri,Candara,Segoe,"Segoe UI",Optima,Arial,sans-serif;font-size:15px;line-height:1.35;color:rgb(49,29,201);text-decoration:none" target="_blank">https://www.flickr.com/photos/ericellingson/</a> </span></div></div></td></tr></tbody></table></td></tr></tbody></table><div></div></div></div></div></div></div></div></div>
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