I would like to trade two pullets from one flock for one cockerel from a second flock. They are currently in side-by-side pens that share a common wire mesh fence. Would they already likely be acquainted enough that we could just make the switch? The first flock is all pullets except for an 18-week-old banty silky cockerel. Would the silky likely have a problem with a larger cockerel moving in? Thanks...