South Texas in Style: Upper Valley Extension
Tour Overview
Journey upriver into the rugged beauty of the Upper Rio Grande Valley, a region that blends South Texas’s tropical charm with the wide-open character of the American Southwest. Here, limestone bluffs rise above the river, and thorny chaparral stretches to the horizon—habitats alive with an extraordinary array of birds.
As we leave the citrus groves of McAllen and Mission behind, the terrain shifts dramatically. The arid brushlands of the chaparral host a new suite of species, including Scaled Quail, Greater Roadrunner, Black-throated Sparrow, and Pyrrhuloxia. Along the Rio Grande’s green corridors, tropical and desert birds converge—Ringed and Green kingfishers flash across the water while Altamira and Audubon’s orioles glow in the sunlight.
Our days will take us from the quiet banks of Salineño, where legendary feeders attract Green Jays and Long-billed Thrashers, to the dramatic overlooks of Santa Margarita Ranch, one of the best sites in the country to see Hook-billed Kite, Red-billed Pigeon, and possibly even the elusive Muscovy Duck. We’ll keep a sharp eye out for Morelet’s Seedeater, a diminutive bird whose U.S. range extends only along this narrow stretch of the river.
Each evening, we’ll return to comfortable lodging in Zapata, where good food, warm hospitality, and vivid sunsets complete the experience. For those who wish to extend their South Texas adventure, this short but unforgettable journey offers a deeper connection to the wild heart of the Rio Grande.
Ecosystems Experienced
The Upper Rio Grande Valley forms a transition zone where South Texas brushland meets the Chihuahuan Desert. Riverine woodlands, limestone bluffs, and dry thorn-scrub chaparral support an extraordinary diversity of birds. This mosaic of habitats provides refuge for desert dwellers like Greater Roadrunner and Cactus Wren alongside tropical species such as Green Jay and Altamira Oriole.
Expected Climate
Key Species






