Habitats and their associated birds Colorado is blessed with a tremendous variety of habitat types, which results in a tremendous variety of birds. In order to find a bird, you are best off looking for its habitat, and this requires at least a basic knowledge of Colorado's flora and geology. This section describes the main habitat types and some birds that are associated with them and may be hard to find elsewhere. Sagebrush Foothill Shrubs Spruce-Fir Forest Yucca Ponderosa Pine Forest Alpine Tundra Shortgrass Prairie Aspen Groves Cliff Faces Lowland Riparian Woodland Lodgepole Pine Forest Subalpine Life Zone Scrub Oak Woodland Streamside Willows Rimrock and Mesa Country Pinyon-Juniper Forest Sagebrush is the collective name for a number of similar shrubs (genus Seriphidium, formerly included in Artemisia), which are recognizable by the distinctive blue-green coloration of their tiny leaves. Sagebrush dominates the lower, drier elevations of the state, particularly on the West Slope and in the mountain parks. Associated birds include Greater and Gunnison Sage-Grouse, Sage Thrasher, and Brewer's, Black-throated and Sage Sparrows.