You could use a little bit more definition; charcoal is great because it's good for expressing value. I don't see any defined light source here, which would really help you out, and you wouldn't have to rely so much on using lines to define shapes, which in turn would make it look much more realistic.
The smudging you did on the top of the beak turned out well.
It's good that you're willing to draw with different mediums. Keep practicing and you'll be a pro eventually.
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