don't know what is going wrong they are eating and drinking but they are getting skiny and then die. The two that died were RIR, Silkie the third one which is a heavy bread mix is not dead yet but showing the same symptons real skinny not moving around much the others pick on her but her crop is full......... I have noticed that the last two bags of cracked corn I bought has had some mold in it would that be causing it????? Please help:?