They should make a second movie where that Barry guy and Amy are......
married and they adopt another flock of baby geese and do the same thing that Amy and her dad did, but there's different problems involved.
I always thought that Amy and Barry were meant for each other, even though she was a child in that movie and he was an adult, but maybe when she's of age, they discover they have feelings for each other and get married, much to the dismay of Amy's father and Susan, but they eventually come around.