I didn't read past page 3... I just wanted to share my experiences.
I grew up in the Philippines with a slew of backyard chickens and pigs and vegetable and fruit gardens in a tiny property in the city. Anyway, I was about 8 or so when I got to be tasked with killing a chicken for dinner. My mom showed me how to do it and after that, everytime my mom asks me to kill a chicken, I just go and do it all myself. The hardest part of it for me, growing up eating our own harvest, was catching the chicken!
Anyway, this is how I was taught at 8 years old...
1.) Catch the chicken. Put your hands over the wings and down the sides of the chicken so she doesn't flap around.
2.) Calm the chicken down by putting the chicken on your lap and running your hand down its back while praying or singing church songs of thanksgiving softly (I'm not kidding - this is part of the process that I was taught).
3.) When she stops wiggling and her breathing is calm, lift up her wings very slowly and turn the chicken around and pin the chicken's wings between your legs with her head away from you. Then run your finger down the side of her chin down her neck over and over until the chicken looks like she's sleeping.
4.) Tilt your knees down a bit so the head is lower than the body and bend the chicken's neck down a bit and feel around the neck for the beating nerve. Pull a patch of feathers from her neck to expose the beating nerve. If you don't see the beating nerve, tap the area with the side of the knife. The nerve should become more visible.
5.) Make sure the chicken is still in meditation mode (like she's sleeping). You might have to run your finger down her chin again and sing to get her to sleep throughout this process (yes, you have to either pray or sing softly so the chicken can hear you). Then take a VERY VERY SHARP knife - this will only work with that special knife my mom keeps super sharp for killing chickens, you'll have a big mess if you don't use that knife and my mom will give you a whooping! - so take that sharp knife and with one hand still holding the chicken's head, quickly slice the exposed neck where it is beating. You can't hesitate or be squeamish about it. It has to be deep and swift! The hand holding the head and the wings trapped between your legs is very important because the chicken will still jerk around even after it is dead and you'll make a big mess.
6.) After the jerking ends and all the blood has drained, you can stop singing. You then take the chicken and put her in boiling water. After a bit of boiling, you should be able to take off her feathers by just grabbing fistfuls and pulling in the direction of the feathers. Some pins might still be left behind - you can take pliers and pull those with it.
That's all there is to it.
Interestingly, I've done that so many times while living in my mom's house without a problem. But now that I have my own chickens, I can't seem to bring myself to kill my chickens. I need to stop naming them. I think that's the problem. That's the same as our pig growing up. My mom can't kill the pig because we named him. So instead, she sells the live pig to the butcher and buys an already dead pig with the money. Yeah, it makes no sense.