I have lost 4 bantam OEG birds to some sort of mild sickness. The birds seem just fine until one day you notice they seem a little lethargic and then within 24 hrs they are dead. I did notice a little sneeze here and there from a few of the birds but it didnt seem like a serious problem. Other than the occasional sneeze and being a bit snotty there are no indications as to what it is. THe birds are all young (under 1 year) and i bought them all from somewhat decrepid circumstances. THey have on the whole been healthy birds but now im really concerned that this will continue. I let my birds out 3 times per week for bathing, foraging and sunshine otherwise they are in open pens and get moderate sun and have clean environments. I try not to feed anyone old or spoiled scraps but they do scratch up an old pear core or some compost from time to time. I feed them fresh greens from the garden every other day. I change water daily but i do admit im light on the bleach once a week rule. Could water cleanliness be the problem ? The birds do get moved in to each others pens temporarily sometimes and i wonder if this could spread the sickness. Also arent birds hardy animals? Is all this happening because i have them in pens? If these were fully free range birds would i be likely to have this problem? Thanks for the Help I really want to put an end to this problem.