There are two main areas that I bird in the West Texas region, they are Big Bend National Park and the Davis Mountains.  Both areas have many species that can only be found in this part of Texas.  West texas is very productive in the Summer months, when other parts of the state can be slow.  This part of Texas also can have a number of very rare birds for the United States, many accidentals show up here every year.  Here are some birds of interest in West Texas. 

"Mexican" Mallard- Resident

Scaled Quail- Resident

Montezuma Quail- Resident

Western Grebe- Resident, rare in Summer

Clark's Grebe- Resident, rare in Summer

Gray Hawk- Summer

Common Black-Hawk- Summer

Zone-Tailed Hawk- Summer

Ferruginous Hawk- Winter

Golden Eagle- Resident, rare in Summer

Prairie Falcon- Resident, rare in Summer

Band-Tailed Pigeon- Resident, rare in Winter

Greater Roadrunner- Resident

Western Screech-Owl- Resident

Elf Owl- Summer

Flammulated Owl- Summer

Lesser Nighthawk- Summer

Common Poorwill- Resident, rare in Winter

White-Throated Swift- Resident

White-Eared Hummingbird- Summer

Broad-Billed Hummingbird- Summer

Blue-Throated Hummingbird- Summer

Magnificent Hummingbird- Summer

Lucifer Hummingbird- Summer

Broad-Tailed Hummingbird- Summer

Acorn Woodpecker- Resident

Red-Naped Sapsucker- Winter

Williamson's Sapsucker- Winter

Gray Flycatcher- Summer

Vermilion Flycatcher- Resident

Dusky-Capped Flycatcher- Summer

Bell's Vireo- Summer

Gray Vireo- Summer

Plumbeous Vireo- Summer

Mexican Jay- Resident

Violet-Green Swallow- Summer

Verdin- Resident

Bushtit- Resident

White-Breasted Nuthatch- Resident

Rock Wren- Resident

Canyon Wren- Resident

Cactus Wren- Resident

Black-Tailed Gnatcatcher- Resident

Western Bluebird- Resident

Mountain Bluebird- Winter

Townsend's Solitaire- Winter

Crissal Thrasher- Resident

Colima Warbler- Summer

Lucy's Warbler- Summer

Townsend's Warbler- Migration

Hermit Warbler- Migration

MacGillivray's Warbler- Migration

Painted Redstart- Summer

Hepatic Tanager- Summer

Western Tanager- Migration, rare in Summer

Canyon Towhee- Resident

Rufous-Crowned Sparrow- Resident

Brewer's Sparrow- Winter

Black-Chinned Sparrow- Resident

Black-Throated Sparrow- Resident

Pyrrhuloxia- Resident

Black-Headed Grosbeak- Summer

Varied Bunting- Summer

Painted Bunting- Summer

Hooded Oriole- Summer

Scott's Oriole- Summer

Lesser Goldfinch- Resident