i live in Lehi and my coop is predator proof, but during the day my chickens have the the whole yard to run. i do have crow, hawk, and falcon problems but they don't go after the large hens.i did have a falcon go after some chicks that was only a couple months old but they got away because of the bushes that are in the run. (my run is just a 4' fence of 2"x3" wire you can get at home depot. no top). what you need to watch for is red fox. we have a lot around here but not were i live but i have seen them in other areas. dogs and cats are the #1 menace in city neighbor hoods.
Lehi, yaay we are close. I'm in Spanish Fork. I see hawks around here too. Cats! That would be a big problem here.