Birding while driving isn't the easiest thing to do but once you start birding I think it is hard to put it aside even though you shouldn't be doing it!!
Birds I saw from the car on my trip home from Mesa:
Roadrunner (running across the road in front of me!)
Red Tail Hawks (there was one section about of about 2 miles where I saw 4 Redtails sitting on fence posts)
Northern Harrier Hawk?
Rock Dove (Pigeon)
Not bad for 80 mph!!