how do I humanely kill a fox?

[PruittFarm]

I have a juvenile red fox that kept taking my chickens. I hadn't seen him in several weeks so I purchased a few new hens. One of my hens that I got prefers to try to roost on my roof rather than in the coop. I learned that if I set my rabbit trap with her favorite sardines and bananas that she will go into the Trap set it off and then I can move the Trap and her into the coop at night.
This work three times. I had it set last night walked outside to put her up but she was not in it I left it there so that way I would not have to set it for the next night. I woke up this morning and went out to let my girls out and there was the fox sitting in the Trap... How do i kill it in the most humane way so that it does not suffer and so that I can get rid of it so that my chickens will not be in danger?

( should I use the gun or is there a more humane way)
((Just moved and I live in the middle of nowhere))

 

[Ol Grey Mare]

A quick kill shot is going to be your best option at this point

 

[PruittFarm]

A quick kill shot is going to be your best option at this point

Ok, Thank you for responding so quickly.

 

[Hybridchucks]

keep us posted......

 

[GGBEAR]

where do you live

 

[Hybridchucks]

Burger N.C here!

 

[itsasmallfarm]

am going with shoot it, but at the same time an electric fence can do wonders.

 

[Hybridchucks]

where do you live[/QUOTE

Burger N.C

 

[Chickassan]

If sardines and bananas didn't kill it I'm not sure what will. ..your hen really eats that? The poops must be face melting.

 

[GGBEAR]

Burger N.C

where an earth is this???