Have some new hybrid chickens yesterday of the star variety, the run is about 16ft x 12ft, it is 6ft high all round most wood fencing and some welded mesh. Hens seemed like they were settling in well then around last light I noticed one of them in the garden which i coaxed back in, then later one one perched on top of the fence. I was told that 6ft would be high enough so decided not to mesh overhead which was not to my liking. Not sure if i have to clip their wings, not sure how. I was told these birds aren't flighty, they are docile creatures. Any suggestions