Chukar id help, Larimer county

[ronbco]

I was in Hewlett Gulch at about 6000 elevation. The gulch has a some trees, mix of deciduous and conifers. The hillsides are quite barren and rocky. 2 birds, grouse sized, flushed from a conifer and flew up the steep hillside. I tried to refind them and got a couple short calls that were unfamiliar. eBird sound id said Chukar. I think it was too low elevation and not enough spruce for grouse. The eBird sounds for grouse calls were not what I heard. I never imagined Chukars in the foothills but I see some checklists with them there. 

Thoughts?

Ron Bolton 

Berthoud