You do what ever you want,,, but Just wanted to inform you this.  You kill this one,, and another one will move in to take his place.   Will the killing ever stop??

I deal with such in my backyard also.   My solution;  I have a secure coop. I lock up the coop every night.  I remove feed, and 
WATER  every night.  I store feed, in metal containers,, no more plastic for me.    Note that I did include the water to be removed. This way night time visitors do not make my chicken area,  a regular stop.   WATER, I just spill out, and place containers upside-down to dry.  Chickens get fresh clean water daily this way.
The lil rascal is only trying to eat,,, not do purposeful harm.
Try my approach, and you may have success.
WISHING YOU BEST,,,,,,,,,,,,,,,,,,,,,,,,and
