I did a search and this page seems to do a good job describing the
difference and how it came about.

http://nwbackyardbirder.blogspot.com/2011/04/not-slate-colored-junco-cassiar
-junco.html

Doug Schurman
Seattle



-----Original Message-----
From: tweeters-bounces at mailman1.u.washington.edu
[mailto:tweeters-bounces at mailman1.u.washington.edu] On Behalf Of Christine
Southwick
Sent: Thursday, February 6, 2014 1:19 PM
To: Dusty
Cc: 'Tweeters'
Subject: RE: [Tweeters] Cassiar not Slate-colored Dark-eyed Junco

I'd like clear delineation between the Slate-colored and Cassiar. I have at
least one of, maybe two of, or one each, and don't know how to tell.

Christine Southwick
N Seattle/Shoreline
clsouthwick at q.com

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+

On Thu, 6 Feb 2014, Dusty wrote:

> Date: Thu, 6 Feb 2014 12:59:49 -0800
> From: Dusty <tweeters at innerlodge.com>
> To: 'Tweeters' <tweeters at u.washington.edu>
> Subject: RE: [Tweeters] Cassiar not Slate-colored Dark-eyed Junco
>
> Can anyone enlighten me on what a "Cassiar" is? Are my Petersons and
> iBird both restricted?
>
> Dusty - Lake Stevens, WA