Dear BYC friends, my hubby and I are new to raising chickens. We have two 10-week old Ameraucanas. Recently they seemed to have lost their voice! It is like they wanted to chirp but can only make raucous sound. They used to be very noise, but now they are quiet. We think it is because they are having a hard time making a sound. They have poor appetite and lost a lot of features everyday. Otherwise, they seem to be OK. Does anyone know what might be going on here? We are really worried!