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Bird Checklists of the United States

Johnston Atoll National Wildlife Refuge

small state map showing location

Johnston Island


GIF-Picture of a Gray-backed Tern. Gray-backed Tern

Gray-backed terns are smaller than sooty terns but similar in general appearance. The upper surfaces are gray, and the white blaze over the face and eyes extends well behind the eyes. Nesting in this species begins early in the year since harassment by sooty terns can severely reduce breeding success. Six to seven hundred pairs breed on North Island each year during the summer.


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