Make sure you have the following material on your workstation.
chart paper, tape, straws, scissors, coin, six-sided die
Prepare the ancestral/parental bird:
Cut two strips of paper, each 3 cm x 20 cm.
Loop one strip of paper with a 1 cm overlap and tape. Repeat for the other strip.
Tape each loop 3 cm from the end of the straw.
Find a reference picture below: