Hueco Tanks State Park Professional Review and Guide
"This 860-acre park is dominated by Chihuahuan Desert vegetation encircled by granitic cliffs 100 to 400 feet high, a half-mile wide, and extending about a mile in length. The cliffs form three natural amphitheaters that contain shallow water most of the time; hence the name “hueco,” Spanish for “tank.”
Key Birds: Golden Eagle; Prairie Falcon; Scaled and Gambel’s Quail; Greater Roadrunner; White-throated Swift; Say’s Phoebe; Chihuahuan Raven; Verdin; Cactus, Rock, and Canyon Wrens; Black-tailed Gnatcatcher; Curve-billed and Crissal Thrashers; Pyrrhuloxia; Canyon Towhee; and Black-throated Sparrow are present year-round. Swainson’s Hawk, Burrowing Owl, Lesser Nighthawk, Common Poorwill, Cassin’s Sparrow, and Scott’s Oriole occur in summer. Ferruginous Hawk; Merlin; Long-eared Owl; Black Phoebe; Eastern, Western, and Mountain Bluebirds; Townsend’s Solitaire; Sage Thrasher; Phainopepla; Green-tailed Towhee; and Brewer’s, Blackchinned, Sage, and Swamp Sparrows can usually be found in winter."