Rice is considered to be a healthy food for geese. It provides a ready source of carbohydrates for energy.
No. Geese can eat either cooked or uncooked rice; in fact, some prefer one over the other.
The digestive system of geese is well suited to eat and digest white rice without any side effects or health challenges.
If the cake is made exclusively with rice then it may be given to geese. Otherwise, any rice cake having ingredients such as sugar and fructose are not to be feed to a goose.
The best method is to scatter food on the water surface or in small piles on the ground. This way it is easier for the bird to pick at and eat as well.