Table 3. Land cover covariates and their definitions considered for the model of late-summer habitat use by golden eagles.

The proportion comprised by each covariate was determined for every 2- × 10-km sampling unit. Modified from land cover classes and their definitions in the 2006 National Land Cover Database [32].

Covariate Name	Definition
Shrubland	Areas with more than 20% cover comprised by natural or semi-natural woody vegetation with aerial stems less than 6 m tall; includes trees or shrubs that are small or stunted because of edaphic conditions
Grassland/herbaceous	Areas with more than 80% graminoid or other herbaceous vegetation cover and not subject to intensive management such as tilling but may be used for grazing
Crop/hay	Areas with 75–100% herbaceous vegetation cover that has been planted or is intensively managed for the production of food, feed, or fiber; or is maintained in developed settings for specific purposes
Developed	Areas with more than 30% cover comprised by constructed materials, e.g. asphalt, concrete, buildings
Forest	Areas with 25–100% natural or semi-natural woody vegetation cover more than 6 m tall
Barren	Bare rock, gravel, sand, silt, clay, or other earthen material, with little or no green vegetation present
Wetland	Areas where the soil or substrate is periodically saturated with or covered with water
Water/ice/snow	Open water with less than 25% cover of vegetation/land cover or year-long surface cover of ice/snow generally more than 25% of total cover