ahh I see, I think if you did it right it could work as a divider if it was stapled to a frame of some kind to make your "wall"... but pigeons need sunlight and ventilation, so your going to need an aviary of some sort where they can come and go from the outside to the inside when they want, and the CW would not be good for that..I guess I should explain the situation a little better..
I have an insulated 10X14X8 chicken coop. I am sectioning a portion of it off (about 6X10X8 to be used as a pigeon loft. This building is so secure, I have not even seen flies in it.. The chicken wire would be used solely as the indoor divider. The reason I would rather use CW as opposed to hardware cloth is 1.) cost and 2.) I can never stretch the HC to where it looks nice..
that size sounds more like just an aviary, not a fly pen, 4 ft high would not be a fly pen IMO as they can not fly up, I would make it as big as possible with what you can afford, it is a huge important part of the loft, esp in winter months to get some sun when you can not let them out due to the hawks.Ok. I intend on cutting an 18"X18" hole for the fly pen, and making that - for a pigeon loft this size, would a 4x4x4 fly pen work? How many could it hold?