I did a quick trip around the auto tour at RNWR today. Things were a little slow and it was a pretty dreary day.I did run across this Cackling Goose with an unusually colored neck. I've seen both Canada and Cackling Geese with a white ring around the base of the black feathers on the neck. Sibley mentions that all subspecies of Canada Geese can have white neck collars. I suspect that is what this is, just gotten out of control.
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