I just got two buff orprington chicks from a feed store and one off them is sneezing. Their brooder is draft free but I am worried about my little chick sneezing. Is it sick? I am new to chicks (these are my first) so i am not sure what to do? The chick that is sneezing is the smaller of the two chicks. please help. ETA: Both chicks are also itching/scratching, do they have mites or something?