I saw a pair of Chihuahuan Ravens on a power line tower north of El Paso, TX on June 8th, 2009. They are smaller than the Common Raven and have a white patch on the base of thier breast feathers. They still have the large Raven bill.

There were several Chihuahuan Ravens in and around Bosque del Apache NWR, NM on October 25th, 2009.