How to Draw a Bird Wing

I did my best here. The reason I drew this was because lately I've been drawing birds and mostly gryphons. I am trying to extend my drawing skills, and this has done it. I'm working on feathers, you could say. Now, for the wings, they need to have a shoulder, elbow, and wrist (yes like a real arm) because it is a kind of arm in a way. Look at a birds wing bones and you will find they look like an arm. Put the feathers in rows like in the tutorial, or seld the feathers will look like scales :( ... THANKS FOR WATCHING and I hope you enjoy this!