I will tell you right now preventative maintenance is key. I would start getting everything you need. nutri drench, bedding of different types, two waterers two feeders, brooder lamp, back-up bulb, vitamin packs, look at feed carefully geese need less protein. 20% max. The only other cases I have seen its been the feed, I used purina start and grow crumbles will never use again first hatch used dumor had no issues. I'm mixing in the purina into my adult flocks food carefully so I don't waste it. With geese im finding they need to forage to be healthy when its warm put them outside in a safe pen with food and water they will instinctively graze you will be supprised how little of the store bought food they will eat. I think my problem was I didn't graze them at all. it wasn't until she got sick that I started doing the research and found that out. but they r pretty easy going animals if you keep them healthy from the start. Just be prepared you will be fine