a pair of yb's in they nest r have problems their dropping r wet this has be the second day i have seen this why does this happen to me i clean the nest boxes everyday and keep the loft clean i give the cider vinger three times a week and garlic in the water three days a week and just water for 1 day everything was going great i clean my drinkers onces a week most of the youngters r 3 weeks old and looking well what can i do