From best site for bird sighting information "Colorado Birding Society". They are so nice about providing detailed information their sighting. I use them for ptarmigan so I spend more time hunting and not just taking my shotgun for a walk...
Escalante Wildlife Area
East Walker Tract:
From Delta, travel 12.0 miles north on highway 50 to Escalante Canyon turnoff.
Drive west 4.0 miles southwest into Escalante Canyon.
Ranches in canyon attract Chukar, especially early morning and late evening.