Santa Ana National Wildlife Refuge Professional Review and Guide
"Considered one of the gems of the national wildlife refuge system, the 2,000-acre Santa Ana National Wildlife Refuge is the heart of the Rio Grande Valley Wildlife Corridor, a multi-agency project to protect tracts of native landscape between Falcon Dam and the mouth of the Rio Grande. For birders it is one of the must-visit sites in the lower valley. Bird walks are available throughout the winter and early spring; see the posted schedule at the visitor center for details.
Key birds: Least Grebe, Neotropic Cormorant, Anhinga, Fulvous and Black-bellied Whistling-Ducks, Mottled Duck, Hook-billed Kite, Harris’s and Gray Hawks, White-tailed Hawk, Plain Chachalaca, White-tipped Dove, Pauraque, Buff-bellied Hummingbird, Ringed Kingfisher, Green Kingfisher, Golden-fronted Woodpecker, Northern Beardless-Tyrannulet, Great Kiskadee, Green Jay, Clay-colored Robin, Long-billed Thrasher, Tropical Parula, Olive Sparrow, Pyrrhuloxia, Bronzed Cowbird, Altamira Oriole, and Audubon’s Oriole are present year-round. Least Bittern, White Ibis, Roseate Spoonbill, Purple Gallinule, Groove-billed Ani, Elf Owl, Brown-crested Flycatcher, Couch’s Kingbird, Painted Bunting, and Dickcissel occur in summer. Crested Caracara, Brown Thrasher, Green-tailed Towhee, Lark Bunting, and Yellow-headed Blackbird can usually be found in winter."