While some types of food can be shared between birds and hamsters, it's not recommended to feed them the same diet. Birds require a specific diet that includes a variety of seeds, such as sunflower seeds and pumpkin seeds, along with other types of bird food that are designed to meet their nutritional needs. On the other hand, hamsters require a different type of food, typically a mix of hamster seeds and regular hamster food. While hamster food may be safe for birds to eat in small amounts, it should not be their primary diet.