How to Butcher a Chicken, Part 1: Preparing Your Work Space; Killing, Scalding and Plucking Chickens
These Birds Are All Ready to Go
Thoughts on Equipment
Butchering a chicken takes commitment. While not a hard process, is it messy, smelly, and can be time consuming. It is best done outdoors, unless you want your house to smell like raw chicken (and everything a chicken eats).
It doesn't require a lot of special equipment, but if you have many of chickens to butcher, I recommend making some investments.
My parents and I, plus one friend part of the time, did 100 chickens over three easy days, and calculated, with the help of certain equipment and our combined experience, that each bird took a total of 10 minutes from chicken house to freezer. WIthout the special equipment, the time could easily have been doubled.
If You Just Have a Few Chickens, Here's the Equipment That Is Absolutely Necessary
If you have just a few chickens, any picnic or kitchen table, kitchen knife, clean sink, and large pot of hot water will do. If you are cutting your chickens into pieces, you'll want to have ready a baking pan or large bowl to set the pieces in, as well as something leak-proof in which to put the guts and other waste.
But if you have many chickens to butcher (more than 25), here is a peek at some equipment that will help you streamline the process:
The Recommended Equipment...If You are Butchering More Than 25 Large Chickens

At least 3 tubs for hauling finished chickens. Knives designed for meat cutting. Freezer bags - we needed 2 gallon-size; if your birds are small or skinny, recycled bread bags may work. Frozen bottles of water are great for rinse water.

A chicken plucker. This one is based on the Tub Style Mechanical Chicken Plucker design, sold below.

Add a bit of dish detergent to the water to help the heat penetrate and the feathers release. We kept the fryer in reserve, in case we needed more hot water in a hurry, and used...

...an "ultimate" type scalder, made from a 50-gallon drum which is wrapped in insulation and fitted with a hot-water heater element on the bottom. It takes overnight to heat, but holds heat well.

Our work table, a stainless steel sheet with "lips" on 3 sides. We also had 2 garden hoses with spray nozzles.

Indoors in the meat room (my father processes a lot of meat), a no-touch hand-washing station is excellent. The water is controlled by a knee-press pedal. That's an automatically-heated knife scalder next to the sink.
Scrubbing Sinks and Equipment, Sharpening Knives, Freezing Water

Freeze more water bottles than you think you will need, as they take a long time to re-freeze, once thawed.
Preparing Your Work Space and Equipment
Have all of your outdoor equipment ready in advance. If you choose to use a scalding barrel, such as the one shown, you would be wise to begin heating it the night before you intend to process your chickens. That is a lot of water to heat!
Also, save some plastic bottles (we used 2-liter soda bottles), to freeze water in. You will want to place these in your chicken washing and rinsing water, to help keep the meat cool. Freeze them in advance, and keep them frozen until the moment you use them.
In your final finishing and packaging area (probably your kitchen), scrub everything in sight with soap and mild bleach water...meat is easily contaminated.
Sharpen all knives, have your hauling tubs rinsed and ready, and lock all interested pets away from your work areas.
As you can see in the following pictures, we had a quite professional work space to process chickens in. Adjust these instructions to fit your situation.
Step One - How to Kill a Chicken
There are, naturally, many ways to do the deed. Some are less disturbing than others.
My brother, for instance, felt a bit strange after the chicken he was trying to hatchet looked up at him with one golden eye, its head partially cloven to reveal the brain. He had missed the neck. Knowing the bird was dead did not help him to feel any less bothered.
Still, he was frantic with laughter while the same chicken somersaulted about without its (finally) missing head. I believe that is a sight everyone should see at least once.
If you are brave, you can try wringing your chickens' necks. I am not brave. I am afraid that act would leave me with the same feeling as the sound of my grandmother crushing large black beetles in her cellar.
There is another disadvantage to wringing chickens' necks. They do not always bleed out properly. This makes an impure final product. Chopping the heads off often prevents a thorough bleeding, as well, as it stops the brain and heart functioning too soon.
I will therefore show you one of the most sanitary and humane ways to do in your birds, by slitting their throats.
How to Properly Slit a Chicken's Throat

Unfortunately, Cornish Rock chickens are so heavy that their hips sometimes give out. This one's gave out the night before this photo was taken. He will be the first to go.

These are chicken killing cones. They hold the bird and usually prevent a lot of struggling or flapping, before or after death.

These Cornish Rock birds are easy to catch, because they are heavy and lazy. Naturally, some chickens won't be. Do your best to walk right up to one and grab its body.

The Cornish Rock breed can be filthy, because of their lazy habits. You may want to wear gloves while catching them.

Insert your knife into the brain. This is supposed to stun the chicken, making the death more humane.

Even in the cones, there is some shaking and kicking (death throes), and you can see how blood-spattered things get. Wear old clothes.

If your work station is not near the chicken pen, use a wheelbarrow to transport the dead birds. It will get bloody.
Chicken Killing Advice From David, a Reader
Put a bleeding cup on their head to catch the blood in the killing cone so you don't have it splattered all over the place. Don't let your chickens graze where you butcher and eat the blood of your kill. slit the throat along the neck, not across, and hit the juggler for the best bleeding. open the mouth then pierce the brain behind the comb to release the feathers. Dry plucking would be so much cleaner than all that mess! It's not that hard!
If You Have No Chicken Killing Cones...
Milk Jug Chicken Killing Cones (Make Your Own)
How to Wring a Chicken's Neck
Notes On Scalding and Plucking Chickens
The next step in chicken processing is to scald the birds, so they pluck easily.
We like to do this with the water at about 150* F. This is considered hot, and will sometimes make the skins come off during mechanical plucking. Some people prefer to do their scalding at about 135* or 140* F.
The idea behind scalding is to losen the feathers, expanding and softening the openings in the skin. It is necessary for efficient plucking. Of course, you can choose to skin your birds, feathers and all, as shown in the video below, and eliminate the need for scalding. It is up to you.
A mechanical plucker is also not necessary. It is convenient, and quick. But it takes an experienced person only 2-3 minutes to hand pluck a chicken, so it is not a huge obstacle. I will show below how best to hand pluck a bird.
How to Scald and Pluck a Chicken

Now is a good time to put some of the bottles of ice in your chicken cleaning water. First run the coldest water you can.

A bit of dish detergent makes the water penetrate better, and so helps the scalding and plucking. Have a thermometer clipped to the side of the scalder.

Hold under about 15 seconds (the lower the temperature, the longer - up to a couple minutes), then pluck immediately.

The plucker whirls the birds against the "fingers" and strips the feathers from nearly every part. Once in a while, a wing or leg gets broken.

You will still need to squeeze out the pin-feathers, which will inevitably be missed by the plucker.

A partially broken, partially-skinned bird. He had a rough plucker ride. Also, the plucker rarely takes off the wing-tip and tail feathers.