Field Notes

The Science Behind our new Border Wildlife Study

April 1, 2020

With border wall actively under construction in Southern Arizona, it’s a race against time to document the wildlife community living in unwalled stretches of the international border today. We designed a study to thoroughly document which wildlife species are migrating through and residing permanently in the border zone transecting the Patagonia and Huachuca Mountain foothills….
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Do you live near the border and want to help protect wildlife?

January 15, 2020

In 2019 Sky Island Alliance collected 9,600 photos of wildlife (2019 Top 10 photos). We want to make 2020 the year of 20,000 wildlife photos, and we need your help to do so! Through our Wildlife at the Wall project Sky Island Alliance is currently working on bringing together Mexican and American sister parks, conservation…
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New Border wall threatens Desert Oasis at San Bernardino National Wildlife Refuge

November 4, 2019

Along the US border with Mexico, sits a unique marsh called the San Bernardino cienaga, where wildlife migrates across the international border between Mexico and the mountains of Arizona. This remarkable desert oasis has the highest diversity of bees in the world. With more than 500 species filling the air with sound as they pollinate…
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Ay Mariposa Screening Saturday, October 26

October 24, 2019

This weekend in Tucson, come experience the moving story of butterflies and people affected by the US-Mexico border at the screening of Ay Mariposa at the Loft Cinema. Co-presented this weekend by the Sierra Club Grand Canyon Chapter and The Loft Cinema, Ay Mariposa tells a story of three characters in the Lower Rio Grande…
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Wildlife at the Wall

September 19, 2019

The US-Mexico border runs through the heart of the Sky Island Region—a unique continental crossroads between temperate and neotropical worlds—rich with both human and animal life. For millennia, wildlife freely roamed between major mountain chains of the Sierra Madres and the Rocky Mountains, thriving in the Sky Islands that rise up from the desert southwest…
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Too much at stake—no border wall in our Sky Islands!

March 6, 2018

The Sky Islands are a Continental Crossroads, a place where cultures from two countries and multiple Native Nations mix and mingle, where black bear, coati, and jaguar meet. It is a place of transitions and extremes—extreme heat of the desert summer broken by cool mountain tops and monsoon rain and extreme diversity of plants and…
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Up Against the Wall

September 28, 2017

On a quiet, late-spring morning in northern Sonora, Mexico, a beaver putters across a pond the size of a football field. A sinuous dam, 5 feet high, forms the pond’s southern edge. Frogs croak amid gnawed stumps, and the air is alive with birds and flying insects.

Endangered species, and the wall that could silence them

Under the starry skies over the jagged Sierra Madre foothills, Randy Young listens. He slings his hammock between two mesquites, deep in the 55,000 acres he manages for the Tucson-based Northern Jaguar Project.

How Trump’s Border Wall Could Block the Most Exciting Wildlife Comeback in North America

Jaguars are reappearing in the Southwest. A border wall would put an end to that.