I posted a pic of my hen with bubbly eyes. The only difference I have found between the pic of my hen and the ones I have found online for CRD is that my hens bubbles are clear and thin, not yellow or yucky in any way. she still is exhibiting no other symtoms and the bubbles show up when she is outside(went to check her last night and she was in the coop, separated, and no bubbles). Fine when she was let out and after being in the rain the bubbles started a little again. No respiratory noises, nothing. anyone have any other possible causes?