Okay, I've read about things like lice, and mites and such. My chicks are 2 weeks old, and still isolated in a large brooder. The thought of all those buggy things totally grosses me out. How much of an issue is it? Is it as gross as it sounds? And is prevention really difficult? I just picture this as an ongoing battle, but this is my first flock, so I have no idea. Thanks for any input!!