Every time I come inside from the chickens I have these little things (I think mites) running all over me . They are really small but visible from the naked eye, they seem to have many different colours eg: black, clear, white, white and black. They have a round body like a very small tick but they run quite fast (not like a tick) and they don't jump. After about 20-30 mins they stop itching, so they either die or just jump off (they DO NOT live on me, luckily). But they are still really annoying.