Ian,
I don't personally subscribe to 'Birders Journal' (too many errors -- both grammatical and factual; I was not impressed!) and have not heard anything about the shelducks in Nunavut. However, I have forwarded your e-mail query to a birder friend of mine who lives in town of Arviat, Nunavut. I will forward his reply to group...

David Allinson
President, Rocky Point Bird Observatory
572 Atkins Avenue
Victoria, BC
V9B 3A3
Ph. (250)478-0493

Web site: www.islandnet.com/~rpbo
273 species and counting!
Look for a bargraph checklist coming soon.

"Not everything that can be counted counts,
and not everything that counts can be counted."
Albert Einstein