BIOLOGICAL OPINION - FWS

Breeding site fidelity of coastal and California least terns is very high (Atwood et al. 1984, Burger 1984). This may also be true for the interior least tern in its riverine environment. An interior least tern banded in 1988 as a breeding adult on the Missouri River in North Dakota returned in 1989 to breed on a Missouri River sandbar in North ... ................
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