Hi - New to forum. Have 4 geese hatched 06.10.24. They began showing feather loss several weeks ago and it seems to be getting worse. Had them on flock feed starter from Tractor Supply. Switched to MAZURI flock starter with no change. Changed the wading pool water regularly throughout day, with no effect. Now am not letting them in water except once a day, for short period of time so as to limit exposure to possible bacteria in nasty water, but no immediate change. Anyone have any ideas what can be done? Is this a issue or just a concern. Thanks for any help.