My four hens have been without a rooster since May. About 2 week ago, we found fertile eggs! We bought the following four all as pullets, but one of them has to be a roo. There is no crowing going on and I personally don't see one of them that sticks out to me as a rooster. None of them are laying yet but they should be anytime so they are about 18 weeks or so old... Blue Laced Wyandotte Speckled Sussex Ameraucana Turken What is your best guess?