Hi everyone, I'm new to chickens so would appreciate any help. Several of my 9 week old chicks are doing little sneezes and releasing a clear watery discharge. They seem otherwise completely happy and healthy. Their eyes are bright, they all have plenty of energy are eating well (medicated chick feèd plus scatter grains and bugs, weeds etc they find in their run) they're all growing well and seem themselves (five of the six are cuddlers ) their droppings also appear totally normal and their crops are full at night and empty by morning. should I be worried about this or is it a normal chicken trait? We have a high pollen count right now, do chickens get hay fever ? Any input appreciated, thanks.