Colonies restricted to coastal sites, typically located at heads of bays, reefs, permanent and ephemeral islands, estuaries in lagoons and at river mouths . Nests usually on grassy or mossy flats, sand spits, sandbars, sand dunes, pebbly seacoasts, vegetated summits of flat-topped islands, reticulate and string bogs, wet coastal marshes, or tundra (Haney et al. 1991, North 1997, Rosenberg 1986).
Haney, J.C., J.M. Andrew, and D.S. Lee. 1991. A closer look: Aleutian tern. Birding, Dec. 1991, pp. 347- 351.
North, M. R. 1997. Aleutian Tern (Sterna aleutica). In The Birds of North America, No.291 (A. Poole and
F. Gill, Eds.). Philadelphia: The Academy of Natural Sciences; Washington, D.C.: The American Ornithologists’ Union.
Rosenberg, D. H. 1986. Wetland types and bird use of Kenai lowlands. USFWS, Region 7, Special Studies, Anchorage, AK, 189 pp.