And then I did all the gray parts (beak, around eyes, shaft of crest feathers). I used the same process I just showed. I did end up with some gray ink in places where it shouldn't be (the black outline) but I don't think this is going to be a problem, and I think there's a better way to do this... (I'll show you as soon as I get there).
And that's as far as I am on it now. I am currently working on the blue areas, so stay tuned! :D