Characteristics of sample size of golden eagle nest sites and modeling regions used for developing golden eagle nesting area models in the western U.S. Initial number of nests is the full sample of nests we had available to us and that passed our quality control process.

Number of thinned nest sites is the sample of nest sites used for model development, after we thinned the initial sample to reduce the chance of pseudoreplication. Modeling region size is total size of modeling region, whereas modeling area size is the union of 20-km radius circles around the thinned nest sites. Modeling area percentage of modeling region is the result of dividing the modeling area by modeling region sizes (x 100). Number of sub-regions is the number of discrete sub-regions within each modeling region.