Continued here: This tutorial (all 3 parts) in book form: [link]
Full tutorial list: [link]
I make references at times to human anatomy, so if you're not familiar with it drop by my earlier tutorial Big Guide to Drawing the Body [link]
(it can't hurt to look at Basic Animal Anatomy [link]
I'll repeat here some advice I gave with the previous tutorials:
Use the above guide as a supplement to gesture drawing. Reading and memorizing all this won't help you as much as sketching from life; this guide simply provides the understanding that will make your sketching a learning experience rather than a random process. So, carry a sketchbook around and gesture-draw birds in the park, or from TV.
Also, though in these 2 parts I tried to give all the basic info one needed, personal research is invaluable. If you want to really draw a specific bird, you need to look for pictures of it, movies as well if possible, soak them up, sketch from them, until the way the bird stands and moves become instinctive to you.NO part of this tutorial may be reproduced, so don't even ask!! if you find it helpful and want to share it, simply link to it.