spooky scarecrow and crow

You could craft a scarecrow with an armor stand three fence and pumpkin/jack-o'-lantern the scarecrow would just scare away crows the crows would fly down and try to eat all your crops so you'd need to place down a scarecrow to prevent them from eating your crops within a certain radius and the crows would also sometimes randomly attack players for half a heart of damage if you get too close to them and they would drop feathers if they were to be defeated. Inside of dungeons you could find a spooky pumpkin which would have a purplish glowing mouth and eyes and the light it would admit could be purple if this is crafted into a scarecrow its powers would really show for within the radius of it as a scarecrow not only will the crows be scared off but other aggressive mobs will be too. Thank you for your time, listening to my idea, and making Minecraft better every day!