Compatible river management is essential for the full recovery of the least tern. Unfortunately, there is little a private landowner can do to influence how a river flows or when a dam releases water. Private landowners who own sandy islands used by terns can help by implementing the following suggestions. In areas where sandbars have been overwhelmed by woody vegetation, removing the vegetation may benefit the tern by providing nesting habitat. Removing vegetation by hand or by using chemicals may be necessary each year and should be done instead of mowing.
Notched wing dikes that cause sand to deposit downstream can create new nesting islands.
Avoid disturbing nesting terns or their young. In Missouri, tern nesting sites are posted as seasonal refuges. Control pets near nest sites. Hiking, boating, swimming, picnicking, and camping should be done away from tern colonies to avoid impact. If necessary, fences can be erected around terneries during the breeding season, particularly to regulate the use of ATV's.