[NatureNS] Yellow-rumped Warbler song variations

Date: Wed, 02 May 2012 22:18:34 -0300
To: naturens@chebucto.ns.ca
From: Angus MacLean <angusmcl@ns.sympatico.ca>
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<font size=3>That's very true, James. However the Nashville's song is
invariably higher pitched than the Y/R. The latter is more
&quot;musical&quot;. I suppose this is why I hear any of the Y/R songs as
being more full of
life!!&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<br><br>
As for Redstart songs, I'm usually puzzled when it sings almost any
variant.<br><br>
A while back you spoke of seeing a dragonfly. Presumably it was one of
the smaller ones since that's what I would expect this early. Were you
able to identify it?<br>
Angus<br>
&nbsp;<br>
At 11:22 AM 5/2/2012, you wrote:<br>
<blockquote type=cite class=cite cite="">hi folks, <br>
&nbsp;<br>
I am doing a lot of point counts these days and reminded of how variable
the Yellow-rumped Warbler songs are, including:<br>
&nbsp;<br>
a. trills (or &quot;warbles&quot;) that, at the end, drop in pitch and
speed up (as if they run out of steam before finishing)&nbsp; <br>
b. trills that ascend in pitch at the very end<br>
c. trills that are two-toned; starting off one one pitch then switching
to a lower second pitch (similar in structure to a Nashville or Wilson's
Warbler)<br>
d. uniform trills with no distinct ending (reminiscent of one of the
American Redstart song types)<br>
and others...<br>
&nbsp;<br>
Some of these are highlighted in the Sibley iphone/ipod app (and I'm sure
on Dendroica as well):<br>
&nbsp;<br>
a.&quot;Myrtle songs #1_NY&quot; and &quot;Myrtle songs #3_NY&quot;<br>
b. end of &quot;Myrtle songs #1_NY&quot;<br>
c. &quot;Myrtle songs #2_NY&quot;<br>
d. &quot;Myrtle songs #4_AK&quot;<br>
&nbsp;<br>
I have heard all of these variations in the past month and have had to
track a couple down to verify they weren't early Redstarts, Nashvilles or
Wilson's (Wilson's-es?).<br>
During migration period, sometimes even more so than song structure and
habitat, the pitch and timbre of their voice seem, to me, to be the most
reliable cues.<br>
&nbsp;<br>
happy listening,<br>
James. <br><br>
-- <br>
James Churchill<br>
Kentville, Nova Scotia<br>
Email:
jameslchurchill@gmail.com
<br>
Phone (h): (902) 681-2374<br>
Skype: jameslchurchill<br><br>
<br>
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