Many cats figure out pretty quickly that humans don’t like dead mice as gifts, and then go through an extended process of trial and error trying to figure out what humans do like. Here we see Attempt# 47: Moss.
My boy used to bring me dead snakes (no venomous snakes in our area, don’t worry) which made me rather upset because I love snakes and they were very good for our garden.
So whenever he brought me dead snakes, I would scold him.