Nest occupancy and reproductive outcomes for bald eagle nests in Voyageurs National Park (1973-2016).

Data from repeated areal surveys of bald eagle nests. From 1973-1997, only summary records were available for each nest, each year, listing the number of times it was surveyed, whether it was ever occupied during that year, and what the final reproductive outcome was. For 1998-2016, data included detailed occupancy records and dates for each areal survey conducted each year. Columns are: (1) Year: of monitoring; (2) NestNumber: nest id; (3) SurveyDate: Date nest was surveyed (only for 1998-2016); (4) Visits: number of times each nest was surveyed that given year (also available for 1973-1997 records); (5) WaterDist_m: Distance to the closest permanent lake in meters; (6) MgmtType: 2 if nest was managed using a buffer zone (either 200 or 400 m radius) to minimize human disturbance, 1 if it was not managed; (7) OccCode: 1 if nest was observed to be occupied, 0 otherwise; (8) RepCode: 1 if nest produced one eaglet to near-fledging, 2 if it produced either two or three eagles, 3 if it did not produced any successfully.