The digestion process of the big blue heron eating crabs is as follows:

The great blue heron is a carnivorous bird, and its digestive system is adapted to eating hard-shelled animals such as crabs. The digestive system of the great blue heron includes a strong mouth and digestive tract. When the great blue heron eats crabs, it will break the shells of crabs with its sharp mouth, and then digest the inside of crabs through the digestive tract. The digestive tract of the Great Blue Heron has a strong acidic environment and digestive enzymes, which can help to decompose protein, carbohydrate, fat and other nutrients of crabs.