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Free and Sovereign State of Sonora

Greater Roadrunner Geococcyx californianus ©Alan Vernon - Wikimedia Website

Sonora is one of the 31 federal states of Mexico and is located in the northwest of the country.

Sonora's shores are washed by the Sea of Cortez in the Gulf of California, which is connected to the Pacific Ocean further south. Sonora is thus linked to the so-called "Pacific Rim," which offers ample opportunities for economic development as well as many challenges and opportunities for sustainable use of its natural resources. The Sonoran coastline is 1,208 km long.

Sonora borders the state of Chihuahua to the east, Sinaloa to the south and Baja California to the northwest; to the north it shares an extensive border with the U.S. state of Arizona and a shorter one with New Mexico. To its west lies the Gulf of California; the state of Baja California Sur also shares a maritime boundary with Sonora.

The border with Chihuahua is 592 km, and the border with Sinaloa is 117 km. Sonora's border with Arizona is 568 km long, and its border with New Mexico is 20 km long; these borders allow for multiple economic, cultural, and political ties with the United States. The state's total perimeter is 2,505 km.

Sonora is the second largest state in Mexico (184,934 km²), representing 9.2% of the nation's total area. Sonora consists of four physiographic regions: The Sierra Madre Occidental, Parallel Mountains and Valleys, the Sonoran Desert, and the Coast of the Gulf of California. Sonora is located in a climactic strip in the northern hemisphere that has formed various deserts around the globe. The state is located at the same latitude as the deserts of North Africa, the Arabian Peninsula, and other regions.



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Useful Reading

Bird Songs of Southeastern Arizona and Sonora, Mexico

Geoffrey A Keller Series: MACAULAY LIBRARY OF NATURAL SOUNDS 2 CD's. Cornell Laboratory of Ornithology 2001

ISBN: 123184

Buy this book from NHBS.com

Fieldguides, CDs etc.

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

The Birds of Sonora

Stephen M Russel and Gale Monson 360 pages, distrib maps. University of Arizona Press 1998

ISBN: 0816516359

Buy this book from NHBS.com

Guides & Tour Operators

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

Solipaso Tours

Tour Operator

We were fortunate enough to have inherited a lot of information about the avi-fauna that exists in southern Sonora. A long history of ornithological explorations had ventured into the area to study what was here. More recently, Alamos has become a very popular destination for recreational birders from the USA looking to venture out of the ABA area.

Trip Reports

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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.

2006 [02 February] - James Bradley & Naira Johnston


In early February 2006, we spent a few days in southern and eastern Sonora attempting to see some of the more tropical bird species that reach their northernmost distributional limits in this area. We spent 3 nights camping in the Alamos area and 1 night in the Yecora area. In total, we saw 129 species, spending a total of 5 full days in Sonora, two days of which were spent almost entirely in the car…

Places to Stay

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Rancho Los Baños


Rancho Los Baños is a 30,000 acre privately owned nature preserve and working cattle ranch located at the foot of the Sierra Madre, just 60 miles south of the Arizona-Sonora border. At Rancho Los Baños you will find a diverse array of desert flora and fauna, with habitats and elevations ranging between 3,200 and7,400 feet. Here you will see spectacular views that go on for miles. You will explore El Cajon Canyon, home to 2,000 year- old petroglyphs, 200-300 foot high sandstone cliff walls and a rich riparian ecosystem that allows for incomparable birding. You might climb 7,400 ft high El Pinito, which offers unparalleled views of the region and offers great hiking and birding all around its perimeter. At night, you might relax and enjoy some of the most awe inspiring views of the nighttime sky…

Solipaso B&B


We created Solipaso after several years of living in Alamos. In our first years here, we spent our time exploring the area on foot, on bike and by car. We learned about the area`s unique flora and fauna and about its fascinating cultural and human history…


El Centro Ecológico de Sonora

Facebook Page

El Centro Ecológico de Sonora (CES); fue creado en el año de 1985, con la finalidad de generar una cultura ecológica que fomente el uso sustentable de los recursos naturales fortaleciendo su aprecio y cuidado…


Pinacate Biosphere Reserve


Satellite View

The Pinacate Reserve and the abutting Gran Desierto de Altar Reserve are less than a day`s drive from the US-Mexico border. Together, the two contiguous reserves protect the sea, coast, and inland desert. El Pinacate stands out for its easier access as well as because of its surreal beauty…