the way the wires are twisted to form the frame   the wires that will form the inner frame of the bird
     

 
inserting the part of the frame that belongs to the head   the way the internal frame looks
     
 
inserting the end that belongs to the feet   inserting the end that belongs to the wing
     
 
the internal frame makes it easy to shape the form and pose of the bird   the bird after the frame has been inserted