[CT Birds] Still more from David Sibley on Redpoll Identification

[Roy Harvey]

David Sibley appears to be having a good time digging into the
subject of sorting Hoary Redopolls from Common Redpolls.  His latest
comments on the subject can be found at:

http://sibleyguides.blogspot.com/2008/01/character-index-for-redpoll.html

Note that much of what Mr. Sibley wrote this time is based on a paper
published in 1985, A PHENETIC ANALYSIS OF THE REDPOLLS CARDUELIS
FLAMMEA FLAMMEA AND C. HORNEMANNI EXILIPES by Declan M. Troy,
originally appearing in The Auk.  At the end of Sibley's article
there is a link to a pdf of that paper.

Roy Harvey
Beacon Falls, CT