I just got these 4 Ameracauna pullets from the feed store yesterday. They are 2 or 3 days old. Appeared very healthy and normal yesterday and this morning, went to check on them a half hour ago and noticed 2 of the chicks had red eye lids. Watched for 5 minutes, and caught them in the act! Two unaffected pullets pecking at the other 2 affected ones. I separated them into 2 groups for now. Any suggestions for how to stop this, or reason why this may have happened? Chick #1 Chick #2 Chick #3 normal for comparison.