These data represent multispecies core areas for breeding habitats of greater sage-grouse (Centrocercus urophasianus), Brewer’s sparrow (Spizella breweri), sagebrush sparrow (Artemisiospiza nevadensis), and sage thrasher (Oreoscoptes montanus). Core areas represent the smallest land base necessary to contain the resulting distributions across all species; for example, a 25% core area represents the minimum area containing at least 25% of the distributions for each of the four species. These models were developed using prioritzR (https://prioritizr.net/index.html) using minimum set algorithms and relative targets set equally across each of the four bird layers.