Usually, females are the ones that are more active and will hunt and bring home prey...males are usually lazy...I'm surprised that your male cat is showing such behaviour...

One method that I have seen that is effective is to put a bell around your cat's neck...this more or less decreases your cat's ability to "stalk" prey...they will still hunt, because it is instinct, but their success will be limited with a big loud bell around his/her neck...

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