I have 6 ducklings (4 Pekin, 2 Mallards) that hatched just over 1 week ago. Just yesterday one of them had a wet neck and I figured it got wet from the waterer (small plastic chick waterer with Mason jar attached) but today they all are wet on the sides of their necks and itching their necks a lot! I have just moved a humidifier closer as they seemed to have dry feet (peeling a bit) but I can't get the hygrometer to measure more than 35% humidity. What do you think? Should I be concerned??