How to draw an eagle

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Drawing a bald eagle, materials used are listed below!
Final picture: http://www.marcellobarenghi.com/2013/05/drawing-bald-eagle.html
Materials used: http://www.marcellobarenghi.com/p/materials-used-for-my-drawing-video-on.html
It took me 3 hours and 48 minutes
Music: "The Jump Bump" by Dan-O at http://danosongs.com ("Package" Licence)
http://www.danosongs.com/music..../danosongs.com-theju