1. Give each student two sheets of paper.
2. Show the transparency with an overhead projector. Have everyone draw an outline of the bird's chest, neck, and head. As you explain the different parts of a bird's anatomy that help make its songs, have each student add those parts and label them.
3. Show the transparency of a person's vocal cords and anatomy. Have each student then draw an outline of the person. Explain the different parts of the body that a person uses to speak. As a part is discussed, have each student draw the additional part in its normal location on the outline, labeling each part.
4. Place the two outlines beside one another. Discuss differences and similarities that exist between a bird and a person. What effect would these differences have in determining the sounds a person makes compared to a bird's sound?