I saw the Arctic Tern at Chatfield SP on the sand spit at about 3 pm for a half hour. The photos I took I believe confirm the initial id made by Glenn Walbek. It is a first year bird. The carpal bar is not dark enough for a Common Tern and the secondaries in flight are pale, The secondary coverts are darker instead of pale on a Common Norm Erthal Arvada, CO
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