Hi Tweeters,

If anyone else, like me, has heard another birder speak of a "Cassiar" Dark-eyed Junco and wondered what the heck that is, this link should help satisfy your curiosity:
http://nwbackyardbirder.blogspot.com/2011/04/not-slate-colored-junco-cassiar-junco.html


Also, this form of the Dark-eyed Junco is illustrated as "Canadian Rocky Mountains" in the big Sibley.

Good birding,
Evan Houston
Seattle, WA