In the past two weeks I've lost 6 ducks! All of my ducks are 6 month old give or take. All have been very happy and healthy up until recently. I wormed them, treated for external parasites, and disinfected their barn. The sudden deaths stopped until yesterday when one was dead at morning chores. Now this morning my sweet goose is going downhill! He's salivating and gasping for air, wont eat or drink and very lethargic. I've had a Guinea show these symptoms but she is fine now. It seems only my ducks are dying. My chickens haven't gotten sick at all either. I love my birds and I cant stand not knowing how to help them! Can anyone help?!?!