Step 6: Darken the shape of the eye and draw a dot in the center for the Green Angry Bird's pupil. Draw a shape similar to a long rectangle above his eye for his eyebrow. Angle it down a bit for an angry look.
Step 7: Use the initial shape of the arc as a guide to draw the Green Angry Bird's beak. Notice how it comes inside the circle toward the vertical construction line and gets narrower. Draw a curved horizontal line inside the beak that splits it in half and creates the mouth.
Step 8: Draw a line that wraps around the left side of the beak to give it a base. The line also grazes the Green Angry Bird's eyeball slightly.
Step 9: Use the main circle as a guide to draw the Green Angry Bird's head. The top of the head should be narrow, and the bottom should be wide.
Step 10: Above his head, draw the Green Angry Bird's crest or Mohawk by using a series of lines to create a shape similar to three rectangles joined at the bottom.