I have a fully fenced yard, she roams freely during the day around with the other goose and two young call ducks. She's been acting a little more people oriented the last two days, hanging out on the porch in front of the kitchen door, I kept having to shoo her off. Now, she's disappeared into thin air. Last I saw her, I went out this morning to change the water in the wading pool. She's been experimenting with small flights, I've seen her get 4 feet off the ground and go a few yards. I can't imagine her flying over the fence, but maybe she did. If she's sick, I've looked in every possible bush or other hiding place. She was a newly hatched gosling this spring, so she's still very young. It's a mystery! She's my favorite all time darling little bird. I hope she comes back.