| Type |  Book |
| ชื่อเรื่อง | California bird species of special concern : a ranked assessment of species, subspecies, and distinct populations of birds of immediate conservation concern in California / W. David Shuford and Thomas Gardali, editors |
| ISBN | 0979058511 (pbk.) |
| | 9780979058516 (pbk.) |
| พิมพลักษณ์ | Camarillo, Calif. : Western Field Ornithologists ; Sacramento, Calif. : California Dept. of Fish and Game, c2008 |
| รูปเล่ม | 450 p. : ill., maps |
| หัวเรื่อง | Birds --Conservation --United States --California [] |
| | Birds --United States --California [] |
| | Rare birds --United States --California [] |