Survey and habitat data for postbreeding lesser scaup, Lower Red Rock Lake, MT, 2007-2013

The data are part of a larger, long-term project of lesser scaup on Lower Red Rock Lake, Montana, 2004-2015, conducted by the US Fish and Wildlife Service. This segment of the data has summarized results of late summer resighting surveys of nasal-marked adult females and GIS-derived habitat attributes. Scaup resighting surveys were conducted mid-August to early September, 2007-2013. Survey data included location, number, and social status of marked females, wind conditions, and group size of other scaup associated with a marked bird. Habitat attributes were derived from annual lake-level data (water depth) and analyses of 2008 aerial imagery (percent open area, viewshed, interface of water:emergent vegetation, percent bare aquatic substrate, fetch distance). Both data types were delineated at the cell (quarter-block) scale (375 x 375m).