How to make a chicken bomb in any version of minecraft

CHICKEN BOMB!!!!!!!!!!!!!!!!!!!

1.build a 18 block high tower

2.then keep the top and destroy the other 17 blocks

3.build a 4/3 block high walls just like the picture

4.spawn a countless ammount of chicken in the structure

BEHOLD YOUR CHICKEN BOMB!

This invention brought to you by CHICKENZ!