Basin wiki · Animals
Desert cottontail
Sylvilagus audubonii · Audubon’s cottontail
The yard rabbit with shorter ears and a white puff tail; the jackrabbit is the long-eared one.
In the basin
Cottontails stay near cover and scoot into a bush. Jackrabbits are larger, longer-eared, and bound across open pads. A nest of young in a grass cup is usually this species — leave it; the mother returns on a schedule that looks like abandonment. Dogs and traffic are the usual end. Wikipedia and the park mammal list have the rabbit.