Desert Riparian , characterized by dense associations of mesquite, paloverde, acacias, and other shrubs in or adjacent to ephemeral washes. This habitat type is important to many species of wildlife as a source of shade and abundant varieties of food. A number of reptiles found on the range frequent these shady washes during the heat of day. This habitat is probably the most important for birds, particularly during migration. The relatively dense vegetation provides birds with both cover and a variety of foraging opportunities.
Some mammals also use the areas as travel corridors along which they forage or hunt.
Creosotebush Desertscrub . This habitat is typical of the plains and valleys of much of the range where creosotebush is the dominant plant species. This habitat type is home to many rodent species, particularly pocket mice, kangaroo rats, and ground squirrels. The characteristic burrows of the rodents are commonly seen at the base of creosote bushes throughout the range. The abundance of rodents inhabiting these areas attract a variety of predators.