So did you keep all 8 goslings? And I see your hatch rate was low too so maybe this is just the way with ducks and geeseI started with three geese (gander and two females). At about a year (actually 11 months) they hatched out 8 goslings as a thank you for all their care. They started laying a couple of months before that though. The hatch was from a clutch of about 20 eggs total.
