Chickens don’t usually “fly away” chickens can imprint to your property from the very first day, the only reason they would “fly away” is if you chased them with a stick while pocking them in the air out of your property. they cannot “fly away”; however, they can “fly over” objects such as...
Yea, all chicken breeds can fly, when they’re young pullets. I’ve always seen my young hens fly, then when they grow up they can’t.
I wasn’t being specific on “only bantams can fly” because I have a leghorn that used to fly as a young pullet, I haven’t seen her fly since