I'm really sorry to hear about your goose. I understand being extra careful after an unexpected loss like that.They're only a few months old (like 2 or 3) so that may be why his voice is softer. I'm probably just a little jumpy about things getting stucknin their gizzards because I lost a goose to sour crop mid winter and they don't give you any signs that somethings wrong until its critical. So I try to jump on it as soon as I see something wrong.
You mentioned something about spreading food out? Do you mean on the ground? If so, to avoid food getting moldy it is best to feed from bowls and pick up any food that they spill. It can be pretty annoying, since they are so messy. Pellets are the easiest to pick up.
Good luck with everything. Check back in and let us know how everything is going!