[Tweeters] Greater or Lesser Scaups?

Hank Karen karenhank at yahoo.com
Wed Apr 10 11:00:37 PDT 2013

These scaups were on the Columbia River at Astoria as part of a large flock.  Based on head shape and location I would think that they are Greater Scaups, but according to National Geo there should be black on the tips of their bills.  Thanks.
Hank Heiberg
Lake Joy
Carnation, WA

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