Grumpkin Golem

I believe that the dark oak forest should have a mob named the Grumpkin Golem. It is a mob that attack Illagers and players. They are pumpkin headed mobs about the same height as an Iron Golem. Although they hide in daylight underground to deceive players as a pumpkin block, they’re not afraid to rise up if and attack if they are alerted of an Illager or player. At night they roam around as the guardians of the dark oak forest.