Barb, you are so right. Just went through this, no fault of my own, I acquired ducks that had this from the breeder. Horrible way to die. It is also from moldy food and bedding that is not properly cleaned and being housed in overcrowded, unclean environments.. 5 out of 9 ducks dead and not...
I've recently acquired some khaki Campbell females....and have noticed 2 lay eggs with "swirls"....though very pretty/different, I'm wondering if this is a sign of a sickness. They came with other birds that died of aspergillosis from the original breeder. And some had severe bumblefoot. Any...