The ducks and geese control the water, pick up a duck and goose web with the left hand so that the palm is downward, draw a line along the bones on the back of the three toes of the duck and goose web with the fingernail of the right hand (or use a knife with the tip of the knife in the right hand), pinch off the toe tip of the duck and goose web with the hand (or chop it off first), then hold the toe tip of the duck and goose web with the thumb and forefinger, and push it from the toe tip to the palm. When it is pushed to the bottom, The big bones at the back end of the duck, goose and web are pushed to the palm from top to bottom, and then the bones can be taken out.