[va-bird] FW: Cackling Goose

Sue Heath posted this link earlier in the month

http://www.sibleyguides.com/canada_cackling.htm

It does have a map towards the end.=20

John Fox
Arlington



I expect that we will begin to see a lot more reports of this new =
species on=20
VA-BIRD. So far ABA has not provided a good ID article on them in =
Birding=20
(with range maps by subspecies and similar details), and I don't believe =
I've seen=20
one elsewhere. Field guides are of limited help.  Can anyone recommend a =

good--and available--source for such information until the mainstream =
birder=20
publications catch up?  Thanks
Dave Davis
Arlington


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