Osprey nest platforms: Section 5.1.6, U.S. Army Corps of Engineers wildlife resources management manual

A management techniques report on osprey nest platforms is provided as Section 5.1.6 of the U.S. Army Corps of Engineers Wildlife Resources Management Manual. The report was prepared as a guide to assist Corps biologists and resource managers in developing nesting habitat for ospreys (Pandion haliaetus) on project lands. Topics covered for nest structures include nest site selection, management objectives, design, construction, installation, location, maintenance, personnel and costs, cautions and limitations, platform success, and evaluation. Breeding populations of ospreys are widespread in coastal areas and some inland regions of the United States, and nesting activities at reservoirs have increased substantially in recent years. Because a lack of suitable nest sites may inhibit colonization of otherwise suitable habitat or limit population growth, properly constructed and located platforms can be a highly effective tool for osprey management. The development of artificial nest structures for ospreys is presented in this report; guidelines for construction, installation, and placement are emphasized. Detailed design specifications are provided for frame platforms, solid base platforms, ring platforms, tripod structures, and platform supports. Management goals and procedures for evaluating the success of osprey platforms are discussed.