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[[image]] B.S. 26097. Nest and egg of gray-backed tern ([[underlined]] Sterna lunata [[/underlined]]). Laysan Island. April 13, 1923. [[image]] B.S. 26099. Young gray-backed tern, [[underlined]] Sterna lunata [[/underlined]]. Lisianski Island. May 18, 1923. [[image]] B.S. 26101. Young gray-backed tern, [[underlined]] Sterna lunata [[/underlined]]. Necker Island. June 18, 1923.