I dislike wing clipping because I want to encourage my chickens to fly up onto roosts and exercise their wing muscles. I see too many runs that have no perches for the chickens to use. The chickens seem to really enjoy the vertical space.
All the breeds I’ve had (Light Brahmas, White Leghorns, Splash Andalusian, Golden Sebrights, Ameraucanas, Easter Egger, mixes bantams) have been able to fly well. The only ones with problems have been my Silkies and my Frizzle Bantam hen. I had Sebrights at a time that would fly effortlessly up...