LIFE-ZONE LISTS 
7 
Upper Sonoran Zone 
Characterized by nut pine and juniper, antelope, mountain sheep, prairie-dog, horned toad, and plains 
and black-tailed rattlesnakes. 
[Species marked L. breed also in the Lower Sonoran Zone; those marked T. also in the Transition.] 
Ruddy Duck. T. 
Cinnamon Teal. T. 
Long-billed Curlew. 
Mountain Plover. 
Arizona Scaled Quail. L. 
Mearns Quail. 
Mourning Dove. L. 
Arizona Spotted Owl. T. 
Mexican Screech Owl. 
Burrowing Owl. L. 
California Cuckoo. L. 
Arizona Woodpecker. 
Poor-will. 
Western Nighthawk. T. 
White-throated Swift. T. 
Kingbird. T. 
Arkansas Kingbird. T. 
Ash-throated Flycatcher. L. 
Buff-breasted Flycatcher. 
Montezuma Horned Lark. 
Woodhouse Jay. 
Raven. T. 
Western Crow. T. 
Pinyon Jay. 
Yellow-headed Blackbird. T. 
Nevada Redwing. 
Western Meadowlark. T. 
Bullock Oriole. L. 
House Finch. L. 
Arkansas Goldfinch. L. 
Western Lark Sparrow. L. 
Worthen Sparrow. 
Black-chinned Sparrow. 
Sage Sparrow (breeding?). 
Scott Sparrow. 
Canyon Towhee. 
Lazuli Bunting. 
Lark Bunting. T . 
Cooper Summer Tanager. 
White-rumped Shrike. 
Yellow Warbler. T. 
Western Yellow-throat. L. and T. 
Long-tailed Chat. L. 
Catbird. T. 
Rock Wren. T. 
Baird Bewick Wren. 
Western Marsh Wren. 
Gray Titmouse. 
Bridled Titmouse. 
Lead-colored Bush-Tit. 
Lloyd Bush-Tit. 
Western Gnatcatcher. L. 
Transition Zone 
Characterized by yellow pine, Abert squirrel, chipmunks, and porcupine. 
[Species marked U. breed also in the Upper Sonoran Zone; those marked C. also in the Canadian.] 
Ruddy Duck. U. 
Cinnamon Teal. U. 
Shoveller. [U. and L.] 
Dusky Grouse. C. 
Merriam Turkey. 
Band-tailed Pigeon. 
Sharp-shinned Hawk. C. 
Cooper Hawk. 
Flammulated Screech Owl. 
Saw-whet Owl. 1 
Pygmy Owl. 
Rocky Mountain Hairy Woodpecker. C. 
White-breasted Woodpecker. 
Mearns Woodpecker. U. 
Lewis Woodpecker. 
Red-shafted Flicker. C. 
Stephens Whip-poor-will. 
Western Nighthawk. U. 
White-throated Swift. U. 
B1 uc-th roated Hummingbird. 
Black-chinned Hummingbird. U. 
Western Wood Pewee. 
Wright Flycatcher. 
Desert Horned Lark. U. 
American Magpie. 
Rocky Mountain Evening Grosbeak. 
Western Vesper Sparrow. U. 
Western Chipping Sparrow. U. 
Brewer Sparrow. U. 
Red-backed Junco. C. 
Mountain Song Sparrow. 
Spurred Towhee. U. 
Green-tailed Towhee. 
Black-headed Grosbeak. U. 
Western Tanager. 
Hepatic Tanager. U. 
Plumbeous Vireo. 
Virginia Warbler. 
Orange-crowned Warbler. 
Olive Warbler. 
Audubon Warbler. C. 
Grace Warbler. 
Black-throated Gray Warbler. 
Macgillivray Warbler. C. 
Painted Redstart. 
Red-faced Warbler. 
Sage Thrasher. 
Western House Wren. TJ. 
Rocky Mountain Nuthatch. 
Pygmy Nuthatch. 
Mexican Chickadee. 
Mountain Chickadee. 
Willow Thrush. 
Western Robin. C. 
Chestnut-backed Bluebird. 
1 No definite breeding? record. 
