I've used Clavamox, enrofloxin, and amoxicillian with success. None of these were used for anything respiratory in my birds though. There are a lot of broad spectrum antibiotics out there that are good for respiratory issues.I am definitely going to call him in the morning but am unsure what antibiotic I need for her. Maybe he will be able to take a look and figure it out even though he doesn’t have much experience with ducks.![]()