Hi! I hate for this to be my very first post here, but I am in need of some expert opinions. I recently just got started raising chickens and bought 7 birds from different sellers at a local chicken swap. I was very happy with them - but now I am worried. Two hens that I bought from a single seller seemed to have sort of dingy, broken feathers in places. Being inexperienced, I thought naively that they must have been kept in a crowded coop or something and that they would recover. But today when I was collecting eggs I looked and saw a small tick-like bug on my hand. It was tan in color and the size of the head of a ballpoint pen approx. I was worried about it since I had just collected eggs, so I went to the internet and looked up poultry parasites. It seems to match the description of chicken mites... could that be the reason those two hens I bought have bad feathers? They DO have spots where the feathers appear to be broken off and damaged, near their back end and legs. However, there is no sign of eggs or white stuff on their feathers or skin, and their vents appear to be clear of junk and scabbing, except that the fluffy feathers underneath are a tad dirty from waste. Of the two hens, one has so far laid an egg every other day, and one had laid none at all, although I only got them 5 days ago so this could still be normal. Is it possible I am jumping to conclusions as well? Could someone help me identify what's going on? Is there a surefire way to tell if these birds have mites? I can post pictures if needed.