Warner Mountains Professional Review and Guide
"The Warner Mountains are perhaps the least-known mountains in California, an isolated range surrounded by sagebrush plateau country. The area houses a mixture of bird species, borrowing from the Cascades and Sierra Nevada to the west, from Oregon to the north, and from the Great Basin to the east. Most of the country is covered with mixed conifer forest, but there is much subalpine terrain leading up to the peaks.
Specialty birds: Resident—Wood Duck; Bald Eagle; Northern Goshawk; Blue Grouse; Red-breasted and Williamson’s Sapsuckers; White-headed and Black-backed Woodpeckers; Steller’s Jay; Clark’s Nutcracker; Rock and Canyon Wrens; Townsend’s Solitaire; Cassin’s Finch. Summer—Swainson’s Hawk; Calliope Hummingbird; Red-naped Sapsucker; Western Wood-Pewee; Hammond’s, Dusky, Gray, Pacific-slope, and Cordilleran Flycatchers; Mountain Bluebird; MacGillivray’s Warbler; Western Tanager; Green-tailed Towhee; Brewer’s Sparrow; Black-headed Grosbeak; Lazuli Bunting. Winter—Ferruginous Hawk, Bohemian Waxwing. This eTrail provides detailed information on birding strategies for this specific location, the specialty birds and other key birds you might see, directions to each birding spot, a detailed map, and helpful general information."