Hello,
We (my husband, brother, and I) processed our three Pekin ducks last week. We had no experience with any of the steps before. We had raised chickens for meat, but took them to a local couple who processed them for us. This time, the couple was too busy during the window we needed the ducks done (for pin feathers) so we did them ourselves after tons of reading.
The process we did worked well for us. I read (I think on here?) to make a little jacket for the ducks out of a grocery shopping bag and duct tape. You cut a small hole in the bottom of the bag and slip the ducks head in. Then you tape the duct tape (a bit tighter than you think you need to) around the duck's wings, about in the middle. The purpose of this is to stop the ducks from flapping after the deed is done.
We then made a little slipnot bailing twine leash for the ducks. We had a stump from a tree, and we caught the ducks (the were not tame), put on the "jacket" of plastic and duck tape, said a blessing, then laid them down on the stump, the "leash" was pulled tight while the feet were held, and the head quickly removed with a sharpened hatchet.
With the "jacket" on the bird, we were able to immediately hang the bird for bleeding out. I liked this method better than the discribed slitting throats, as you have no doubt if the bird is dead or not. Also, it required very little in the means of special tools. I don't know how humane it was compared to slitting throats (which I have read experienced people say is the most humane?) but for rank beginners like us, it was swift, effective, and definate.
I'm not sure this helps, just throwing out my 2 cents