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Free and Sovereign State of Coahuila de Zaragoza

Scissor-tailed Flycatcher Tyrannus forficatus ©Greg Lasley Website

Coahuila, formally Coahuila de Zaragoza is one of Mexico's 31 component states. It is located in the north of the country.

To the north, Coahuila accounts for a 512 kilometers (318 mi) stretch of the U.S. - Mexico border, adjacent to the U.S. state of Texas along the course of the Rio Grande (Río Bravo del Norte). Coahuila also borders the Mexican states of Nuevo León to the east, Zacatecas and San Luis Potosi to the south, and Durango and Chihuahua to the west. With an area of 151,571 square kilometers (58,521.9 sq mi), it is the nation's third-largest state.

The Sierra Madre Oriental runs northwest to southeast through the state, and the higher elevations are home to the Sierra Madre Oriental pine-oak forests.

East of the range, the land slopes gently toward the Rio Grande, and is drained by several rivers, including the Salado and its tributary the Sabinas. The Tamaulipan mezquital, a dry shrubland ecoregion, occupies the western portion of the state, and extends across the Rio Grande into southern Texas.

The portion of the state west of the Sierra Madre Oriental lies on the Mexican Plateau, and is part of the Chihuahuan Desert. The Bolsón de Mapimí is a large endorheic basin which covers much of the western portion of the state and extends into adjacent portions of Chihuahua, Durango, and Zacatecas. The Nazas River, which flows east from Durango, and the Aguanaval River, which flows north from Zacatecas, empty into lakes in the Bolsón. Torreón, the most populous city in the state, lies on the Nazas in the irrigated Laguna Region, the (Comarca Lagunera), which straddles the border of Coahuila and Durango.

The state contains two biosphere reserves. Maderas del Carmen lies on the northern border of the state, and includes sections of the Chihuahuan desert and sky islands of pine-oak forest in the Sierra del Carmen. The springs, lakes, and wetlands of Cuatro Ciénegas lie west of Monclova on the west slope of the Sierra Madre.

The state is largely arid or semi-arid, but the rivers of the state support extensive irrigated agriculture, particularly cotton. The Parras district in the southern part of the state produces wines and brandies. The pine-oak forests of the Sierra Madre produce timber.

Top Sites

Zona del silencio

Satellite View

Zona del silencio is located in Durango and Coahuila in the north of Mexico and is a dessert ecosystem.



GNU Free Documentation License


Useful Reading

Fieldguides, CDs etc.

For a selection of appropriate fieldguides and CDs etc see the general Mexico page of Fatbirder…

Useful Information

State Bird

Golden Eagle Aquila chrysaetos


Abbreviations Key: See the appropriate Continent Page (or Country Page of those used on country sub-divisions)

Cuatro Ciénegas Valley


Satellite View

With The Nature Conservancy's support, the Mexican conservation organization Pronatura Noreste recently purchased a 7,000-acre ranch in the valley, known as Rancho Pozas Azules (Ranch of the Blue Pools) in the valley. The property harbors more than 70 of the valley's approximately 200 desert springs, which are home to more than 77 species unique to the valley…

Reserva de la Biósfera Mapimí


Satellite View

Por sus características de aridez y vegetación contiene ecosistemas representativos del desierto chihuahuense y de la subprovincia geográfica de Mapimí…

Guides & Tour Operators

Click on WAND for tours, guides, lodges and more…

Aventurate Coahuila

Tour Operator

The Parrot's Tour, Las Cumbres Ranch are to 8 km from Jamé. U can watching the Black Bear Orsus americanus to 120m!!! and the Maroon-fronted Parrot Rhynchopsita terrisi. Besides birds you can observe great variety of mammals and representative flora of the place…

Birding Pal


Local birders willing to show visiting birders around their area…

Trip Reports

Click on WAND for tours, guides, lodges and more…


Trip Report Repository

CloudBirders was created by a group of Belgian world birding enthusiasts and went live on 21st of March 2013. They provide a large and growing database of birding trip reports, complemented with extensive search, voting and statistical features.

2004 [05 May] - Phil & Charlotte Benstead


…The key species to see on this itinerary are the following regional endemics not found elsewhere: maroon-fronted parrot, red-crowned parrot, Tamaulipas pygmy-owl, tawny-collared nightjar, tufted jay, Altamira yellowthroat (though also in northern Veracruz), crimson-collared grosbeak and Worthen's sparrow…


Museo de las Aves de Mexico


México is host to about 1,000 species of birds, of 9,000 existing in the world. In these pages you will find data and pictures on over 70% of them, from the collection at the Museum of Mexican birds…

Other Links

Birds of Cuatro Ciénegas, Coahuila, México - Cuatrociénegas Scientific Research Center


This paper presents data for 25 bird species, 15 of which are new locality records from the Valley of Cuatro Ciénegas, Coahuila, México. Included are Scissor-tailed Flycatcher (Muscivora forficata) and Horned Lark (Eremophila alpestris lactea); the former representing a westward range extension of nearly 100 km and the latter being the first record outside the type locality. A total of 61 avian species is now reported from the Valley…