As for call notes on Hutton's. A frequent one I hear is a laughing call note. If you look under the voice descriptions in Sibley it is described. I have probably located more Hutton's first by this call note in winter than by visual. Hope this helps.

Good Birding.

Scott Downes
downess at cwu.edu
Ellensburg WA

>>> Lynn & Carol Schulz <linusq at worldnet.att.net> 11/24/02 07:40 AM >>>
Hi Everyone:
I saw a Hutton's Vireo in some thickets a couple of days ago here is
DesMoines. It reminded me of the following, excellent link to the best info
I've ever found about ID'ing them, where they could be confused w/
Ruby-crowned Kinglet.
http://montereybay.com/creagrus/HUVI-v-RCKI.html
The bird I saw had a very-dark section (black) BETWEEN the two wingbars,
something NOT shown in Sibley. The website above mentions that, and that
the dark part on the Ruby-crown's wing is below the lower wingbar. Because
this bird actually perched up on the blackberries, I was able to see the
wingbars, it's larger size, and large bill.
I guess I need to listen to some bird tapes to learn their call note. This
will probably help when they can't be seen (almost always.)
Yours, Carol Schulz
DesMoines
linusq at att.net