He does have absolute mastery, but it's my favorite tutorial because it is an _excellent tutorial_. I can do 2 chickens in a minute at this point; more, if I don't bone out the legs.
Just as importantly: if you can do this with a chicken, you can do it with a pheasant, a duck, or a goose as well. It works pretty much the same way.
If you eat chicken, I strongly encourage you to try this yourself.
Arnold's in the middle of a move and has to thin out his book collection as a result. As he tries to figure out what to keep he's been bringing in books to talk about in a new segment called "Classics in the field". If you've enjoyed Dave Arnold talking at length about obscure decades-old highly in-depth technical books, well he's doing that every week now.
I'm very happy that he's saved me the trouble of having to read "Pigeons: How to Make Them Pay"