desert bighorn sheep

What’s killing desert bighorn lambs?

November 8, 2018

When New Mexico removed desert bighorn sheep (Ovis canadensis mexicana) from the state’s list of threatened and endangered species, biologists had a pretty good ...

Zion bighorns diagnosed with pneumonia

August 9, 2018

Officials at Utah’s Zion National Park are asking visitors to listen for coughing bighorn sheep (Ovis canadensis nelson). Biologists have say it could be a sign ...