The Callipepla gambelii birds are easily recognized by their top knots and scaly plumage on their undersides. Gambel's quail have bluish-gray plumage on much of their bodies, and males have copper feathers on the top of their heads, black faces, and white stripes above their eyes. The bird's average length is with a wingspan of. These birds have relatively short, rounded wings and long, featherless legs. Its diet consists primarily of plant matter and seeds. Gambel's quail can be commonly confused with California quail due to similar plumage. They can usually be distinguished by range, but when this does not suffice, California quail have a more scaly appearance and the black patch on the lower breast of the male Gambel's quail is absent in the California quail. The two species are sister taxa which diverged during the Late Pliocene or Early Pleistocene, 1 to 2 mya.
Taxonomy
Subspecies
There are two recognized subspecies:
C. g. fulvipectus – fulvous-breasted quail – southeast Arizona and southwest New Mexico to southern Sonora in Mexico
C. g. gambelii – nominate – Utah and Nevada through Mojave Desert to Colorado, northeastern Baja California and Tiburón Island.
Behavior
Gambel's quail primarily move about by walking and can move surprisingly fast through brush and undergrowth. They are a non-migratory species and are rarely seen in flight. Any flight is usually short and explosive, with many rapid wingbeats, followed by a slow glide to the ground. In the late summer, fall, and winter, the adults and immature young congregate into coveys of many birds. In the spring, Gambel's quail pair off for mating and become very aggressive toward other pairs. The chicks are decidedly more insectivorous than adults, gradually consuming more plant matter as they mature. Gambel's quail are monogamous and rarely breed in colonies. The female typically lays 10–12 eggs in a simple scrape concealed in vegetation, often at the base of a rock or tree. Incubation lasts from 21–23 days, usually performed by the female and rarely by the male. The chicks are precocial, leaving the nest with their parents within hours of hatching.
Feeding
The Gambel's quail eats insects, especially in summer, as well as plants. Unlike many other bird species, they require a high protein diet.
Relationship with humans
Quail are extremely afraid of humans. Even quail that live on or near a human's property immediately remove themselves from the area as soon as a human is spotted. They have an acute sensitivity to a human approaching, and will run quickly, or take short flight to avoid interaction. Some animals that are hunted by humans eventually adapt and befriend a human that feeds them and shows kindness to them, as is the case with cottontail rabbits. A human is not going to make friends with a quail, except in the rare circumstance when a baby chick is abandoned, and a human claims it as a pet, feeds it, and brings it to adulthood. Even then, the relationship is short lived as soon as the quail is released back into the wild. Quail are so notoriously known for their fear of predators, that the definition of the word 'quail' literally means 'fear', 'wince', or to 'draw back in pain'.