so I have to Buff Orpingtons and they are going on to a week and a half old, and right now they can probably jump about 1/2 foot to probably a foot, and my run fence is 4 foot high is that high enough! this is my first time with chickens so I am new, and I think later on in the summer, is to build a run that has a box frame with chicken wiring if you all know what I mean!!