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 Lodgepole Pine (Pinus contorta) is often the dominant tree in the altitudinal zone above the ponderosa belt and below the spruce-fir forest. It usually has shorter needles than ponderosa, so that outer branches are less ball-shaped and more bottlebrush-shaped. Pure lodgepole stands, which often cover vast areas after fires, are easily recognized by their uniformity, with many tall, very thin, straight trees growing so close together that there is little room or light for underbrush. Various montane birds may inhabit these groves, but they contain no specialty species, and in general bird numbers and diversity tend to be lower in the lodgepole forest than they are in other montane habitats.