What she said!!!!Ditto Dat^^^
Think about winter, when the birds may spend all day(sometimes days on end) cooped up due to nasty weather. Cabin Fever can get ugly.
.....and if this is your first year and eating eggs is your only goal, you may not want to deal with any males at all. Can depend on your goals and housing options. You only need 1 male to fertilize 13 females if you're interested in hatching out replacement layers
4 months is just the beginning, be ready with a separate enclosure cause if things go bloody, it happens fast.