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Common Rosefinch: Small, stocky finch, red upperparts and breast, faintly streaked brown back, white underparts. Bill is dark gray and stout. Wings and tail are dark brown. Legs and feet are gray-brown. Forages on ground and in trees and shrubs for seeds and insects. Bounding flight.
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Cassin's Vireo: Small vireo, olive-gray upperparts, white underparts, pale yellow flanks. Head is gray with white eye-ring that extends to brow. Wings are dark with two white bars. Until the 1990s was classified as the Solitary Vireo, along with the Blue-headed and Plumbeous Vireos.
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Chukar: Large, quail-like bird with orange-brown and slate-blue upperparts and breast, and black and rufous barred white flanks. White face has sharp black line extending to neck. Bill and legs are bright pink-red. Escapes danger by running. Direct flight with rapid deep wing beats.
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Canyon Towhee: Large sparrow, gray upperparts, pale gray underparts, large central breast spot, and white belly patch. Crown is rust-brown. Tail is long with brown undertail coverts. Legs are pink-brown. Short flights with rapidly beating wing strokes alternating with wings pulled briefly to sides.
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Carolina Wren: Medium-sized wren with rufous upperparts and buff underparts. Eyebrows are white, wings and tail are dark barred with white flecks. Throat and chin are white. Bill is decurved. Legs and feet are pink-gray. Range expands north when winters are mild and retracts south when harsh.
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Common House-Martin: Small swallow, metallic dark blue mantle and crown; wings and tail are black-gray. Forked tail. Solid white rump distinguishes it from other swallows. Legs covered in white down. Flight is graceful, swift and direct on rapidly beating wings. It soars on wide triangular wings.
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Colima Warbler: Large warbler, gray head, throat, brown to gray-brown upperparts. Rufous crown patch, white eye ring. Bright yellow-olive rump. Buff-brown breast, flanks. Light gray belly. Long gray tail. Believed to be restricted to Mexico until 1928, when a specimen was found in Texas.
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Crescent-chested Warbler: Small warbler, gray to blue-gray head, wings, tail. Yellow-green back, breast, throat are yellow with a rufous-brown spot or crescent on upper breast; belly and sides are white to gray. Head has white eyebrows that widen towards nape and partial lower eye-ring.
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Canyon Wren: Medium wren with rust-brown upperparts, fine white spots on gray-brown back, nape, and crown, white throat and breast, and white-spotted brown belly. Tail is long and brown with thin black bars. Head has a flattened appearance; bill is long, slender, and slightly decurved.
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Calliope Hummingbird: Very small hummingbird, metallic green upperparts and flanks, white underparts. Throat feathers are long, purple-red, appearing as streaks on a white background, whiskers when fluffed out, or dark, inverted V when folded. Direct and hovering flight with very rapid wing beats.
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California Thrasher: Large, slender thrasher with dark brown upperparts and paler gray-brown underparts. Face is finely streaked, eyes are dark, and black bill is very long and down curved. Throat has small buff patch. Tail is long with reddish-brown undertail coverts. Legs and feet are gray-brown.
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Clark's Nutcracker: Medium, noisy and inquisitive jay with pale gray head and body. Black bill is long and stout. Wings are black with white patches and tail is black with white edges. Feeds on nuts, insects, eggs and young of other birds, lizards, carrion and small mammals. Steady deep wing beats.
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California Quail: Medium quail with distinctive, curled black head plume and white-bordered black throat. Breast is gray and belly is sharply scaled. The flanks are brown with white streaks and back is olive-brown. Legs and feet are gray. Alternates several stiff, rapid wing beats with short glides.
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Common Raven: Large raven with all-black body, large, stout bill, wedge-shaped tail. Eats invertebrates, vertebrates, insects, carrion, refuse, eggs and young of other birds, and rodents. Strong flight, alternates several deep wing beats with long glides on flat wings. Soars on thermals, updrafts.
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Common Poorwill: Small, stocky nightjar with pale brown mottled body and white collar separating black throat from narrowly barred underparts. Wings are rounded and tail is short and fan-shaped with outer tail feathers tipped white. Pink-brown legs and feet. Silent flight on quick shallow wing beats.
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California Condor: Very large raptor with black body, bare-skinned red-orange head, and white wing patches. They can soar for longs periods with minimal wing movement. Locates carrion with its keen eyesight, can survive several days without food. Has the largest wingspan of any North American bird.
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Chestnut-sided Warbler: Medium warbler with black-streaked upperparts, white underparts, and chestnut-brown flanks. The cap is bright yellow and moustache stripe is black. Often cocks its tail high above its back as it feeds. The only North American warbler with pure white underparts in all seasons.
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