I have a hen that has bluish wattles and a swollen throat. It has been 4 days since I have noticed this. She is a leghorn and is still eating, drinking, and acting normal. A few friends said maybe fowl cholera, but I don't think so. If it is cholera, wouldn't she have died by now or be acting sick? I seperated her from the flock 2 days ago and started her on oxytetracyclene just in case.