Klamath Basin National Wildlife Refuges, Oregon and California
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We examined the effects of Herring and Great Black-backed Gulls on Piping Plover nest site selection on South Monomoy Island, MA, from 1998 to 2000. We compared Piping Plover behavior and nest site selection in a gull-free area to a gull area, and compared Piping Plover nesting area characteristics to areas not used by plovers. We found no difference in the frequency of disturbance by gulls to pre-nesting adult plovers between the two areas. We found fewer gulls near pre-nesting adults than near random points, and fewer gulls in Piping Plover nesting areas than in areas not used by plovers. Proximity to prime foraging habitats and available nesting habitat (wide stretches of open vegetation) may be more important to Piping Plover nest site selection than the presence of gulls.
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