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Forwarded from Massbird listserve.

Hi Massbirders,
    A bird bander friend of mine, Bill Hilton from York, SC does
research on RTHU. He color marks the upper breast and throats of RTHU.
If you see a RTHU with a green color marking, please notify him.  Here
is the link that explains what he does.

http://www.rubythroat.org/HummerMarkingMain.html

     I would appreciate if anyone can cross post to other list serves.
Thanks,
Kathy Mills
Holden, MA