Cut the mask base: Trim 3" off the bottom of one plate so you are left with a piece of plate that’s slightly larger than half. The cut bottom will be the bottom of the mask. Fold the sides in about 3/4" and glue them behind the mask. Measure the eye width of the wearer, pencil eyes on the mask, and cut out the eye holes with a craft knife.
Cut out 16 feather-shaped pieces from the ribbed edge of two of the plates, ranging in size from 2 ½" to 3" long and about ¾" to 1 ¼” wide. Fold them in half perpendicular to the ribbing (press them against a table edge to help get a sharp crease).
Cut two skinny semicircle pieces along the ribbed edge of a plate for the beak, about 7" long and 2 ¼" at its widest. Fold down ½" of the plate along the long cut edge on both pieces. Apply glue to these flaps and adhere them together to create the beak. Snip off about 1" from one pointy end of the beak. Glue that cut end to the bottom of the mask base.
Paint the feathers and the mask base and beak; let dry.
Glue the feathers to the mask base.
Glue the dowel onto the back of one side of the mask.