Its a bit off topic but if youre going to range feed your chicks you should really think about making a chicken tractor. Ive heard they work really well in gardens to clean up field trash, keep insects/larvae under control and aerate the soil some. Really a chicken tractor is nothing more than a moveable range house by another name. Since this is a tractor site chicken tractor seemed more appropriate.

Depending on how well its built I think they could spend most of the time in the range house. All you need to do is move it regularly and keep fresh water and suppliment feed available. Ive seen them fitted w/ laying facilities and I think there are free plans on the net too. Ive seen them from very simple to very complex (self moving etc etc).