California quail, Callipepla californica LC
The California quail (Callipepla californica), also known as the California valley quail or valley quail, is a small ground-dwelling bird in the New World quail family. These birds have a curving crest orplume, made of six feathers, that droops forward: black in males and brown in females; the flanks are brown with white streaks. Males have a dark brown cap and a black face with a brown back, a grey-blue chest and a light brown belly. Females and immature birds are mainly grey-brown with a light-colored belly. Their closest relative is Gambel's quail which has a more southerly distribution and, a longer crest at 2.5 in (6.4 cm), a brighter head and a scalier appearance. The two species separated about 1–2 million years ago, during the Late Pliocene or Early Pleistocene. It is the state bird of California. 
The California quail is a highly sociable bird that often gathers in small flocks known as "coveys". One of their daily communal activities is a dust bath. A group of quail will select an area where the ground has been newly turned or is soft, and using their underbellies, will burrow downward into the soil some one to two inches. They then wriggle about in the indentations they have created, flapping their wings and ruffling their feathers, causing dust to rise in the air. They seem to prefer sunny places in which to create these dust baths. An ornithologist is able to detect the presence of quail in an area by spotting the circular indentations left behind in the soft dirt, some 7–15 cm (2.8–5.9 in) in diameter. 
They are year-round residents. Although this bird coexists well at the edges of urban areas, it is declining in some areas as human populations increase. They were originally found mainly in the southwestern United States but they have been introduced into other areas including British Columbia, Hawaii, Chile, Uruguay, Brazil, Argentina, Peru, South Africa, New Zealand, and to Norfolk Island and King Island in Australia. These birds forage on the ground, often scratching at the soil. They can sometimes be seen feeding at the sides of roads. Their diet consists mainly of seeds and leaves, but they also eat some berries and insects; for example, Toyon berries are a common food source. If startled, these birds explode into short rapid flight, called "flushing". Given a choice, they will normally escape on foot. 
Their breeding habitat is shrubby areas and open woodlands in western North America. The nest is a shallow scrape lined with vegetation on the ground beneath a shrub or other cover. The female usually lays approximately 12 eggs. Once hatched, the young associate with both adults. Often, families group together, into multifamily "communal broods" which include at least two females, multiple males and many offspring. Males associated with families are not always the genetic fathers. In good years, females will lay more than one clutch, leaving the hatched young with the associated male and laying a new clutch, often with a different associated male. 
They have a variety of vocalizations including the social "chicago" call, contact "pips" and warning "pips". During the breeding season, males utter the agonistic "squill" and will often interrupt their social mate's "chicago" call with a "squill," a possible form of antiphonal calling. 
Northern bobwhite, Colinus virginianus NT
The northern bobwhite, Virginia quail or (in its home range) bobwhite quail (Colinus virginianus) is a ground-dwelling bird native to the United States, Mexico, and the Caribbean. It is a member of the group of species known as New World quails (Odontophoridae). They were initially placed with the Old World quails in the pheasant family (Phasianidae), but are not particularly closely related. The name "bobwhite" derives from its characteristic whistling call. Despite its secretive nature, the northern bobwhite is one of the most familiar quails in eastern North America because it is frequently the only quail in its range. 
There are 21 subspecies of northern bobwhite, many of which are hunted extensively as game birds. One subspecies, the masked bobwhite (Colinus virginianus ridgwayi), is listed as endangered with wild populations located in the northern Mexican state of Sonora and a reintroduced population in Buenos Aires National Wildlife Refuge in southern Arizona.
This is a moderately-sized quail and is the only small galliform native to eastern North America. The bobwhite can range from 24 to 28 cm (9.4 to 11.0 in) in length with a 33 to 38 cm (13 to 15 in) wingspan. As indicated by body mass, weights increase in birds found further north, as corresponds to Bergmann's rule. In Mexico, northern bobwhites weigh from 129 to 159 g (4.6 to 5.6 oz) whereas in the north they average 170 to 173 g (6.0 to 6.1 oz) and large males can attain as much as 255 g (9.0 oz). Among standard measurements, the wing chord is 9.7 to 11.7 cm (3.8 to 4.6 in), the tailis 5 to 6.8 cm (2.0 to 2.7 in) the culmen is 1.3 to 1.6 cm (0.51 to 0.63 in) and the tarsus is 2.7 to 3.3 cm (1.1 to 1.3 in). It has the typical chunky, rounded shape of a quail. The bill is short, curved and brown-black in color. This species is sexually dimorphic. Males have a white throat and brow stripe bordered by black. The overall rufous plumage has gray mottling on the wings, white scalloped stripes on the flanks, and black scallops on the whitish underparts. The tail is gray. Females are similar but are duller overall and have a buff throat and brow without the black border. Both sexes have pale legs and feet. 
The northern bobwhite's diet consists of plants and small invertebrates, such as ticks, snails, grasshoppers, and potato beetles. Plant sources include grass seeds, wild berries, partridge peas, and cultivated grains. It forages on the ground in open areas with some spots of taller vegetation. 
n the wild the bobwhite feeds on a variety of seeds of weeds, grasses, as well as insects. These are generally collected on the ground or from low foliage. Birds in the aviary are easily catered for with a commercial small seed mix (finch, budgerigar, or small parrot mix) when supplemented with greenfeed. Live food is not usually necessary for breeding, but will be ravenously accepted. High protein foods such as chicken grower crumble are more convenient to supply and will be useful for the stimulation of breeding birds. Extra calcium is required, especially by laying hens; it can be supplied in the form of shell grit, or cuttlefish bone. 
The northern bobwhite can be found year-round in agricultural fields, grassland, open woodland areas, roadsides and wood edges. Its range covers the southeastern quadrant of the United States from the Great Lakes and southern Minnesota east to Pennsylvania and southern Massachusetts, and extending west to southern Nebraska, Kansas, Oklahoma and all but westernmost Texas. It is absent from the southern tip of Florida and the highest elevations of the Appalachian Mountains, but occurs in eastern Mexico and in Cuba. Isolated populations have been introduced in Oregon and Washington. The northern bobwhite has also been introduced to New Zealand.
Like most game birds, the northern bobwhite is shy and elusive. When threatened, it will crouch and freeze, relying on camouflage to stay undetected, but will flush into low flight if closely disturbed. It is generally solitary or paired early in the year, but family groups are common in the late summer and winter roosts may have two dozen or more birds in a single covey. 
The species is generally monogamous, but there is some evidence of polygamy. Both parents incubate a brood for 23 to 24 days, and the precocial young leave the nest shortly after hatching. Both parents lead the young birds to food and care for them for 14 to 16 days until their first flight. A pair may raise one or two broods annually, with 12 to 16 eggs per clutch.
California Quail - By Gregory "Slobirdr" Smith (California Quail (Callipepla californica)) [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons
Northern Bobwhite - By DickDaniels (http://carolinabirds.org/) (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0) or GFDL (http://www.gnu.org/copyleft/fdl.html)], via Wikimedia Commons
Susan Young - Flicker
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