My babies are in a hutch and I want them to be able to be out in the grass all day and i would put them in at night but the only thing i would have for them is a chainling fence about 5 ft. high. Is this a okay fence? i have 2 dogs but i've yelled at them enough to let them know they can't come around them. BUt back to my point i am away from them right now but in 2 weeks they'll be 18-19 bweeks old, could they fly over 5 ft? and will they? its a big grass area and ideal we take them out for exercise but i want them out more.