Cepphus columba, Auk egg

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Description:

A pigeon guillemot egg (Cepphus columba columba) collected by F. R. Decker from Flat Top Island, Island County, Washingon in June 1919. Decker notes the egg was resting in a nest "of trash, shells, etc. in grass [and] rocks above high tide."

Original set mark: 2/1 Decker Collection