I just had half of my chicken flock taken out by a fox. I've read that guinea hens can help protect your flock. The problem I'm running into is sellers want huge orders. I have 12 chickens left, I don't need 30 guineas! Also, another obstacle, we have Marek's. My last batch of chicks was vaccinated and they're doing well. But do any hatcheries vaccinate guineas? Thanks!