It's a pteradactyl which flaps its wings as you move a straw up and down - this is based off something I saw at the Centre for Life in Newcastle, UK. A fine institution.
Things you will need:
Something to colour your Pterodactyl in with
2 straws - they have to be of different widths so that one can fit inside the other
Step 2: Make a hole in your Pterodactyl
Step 3: Preparing the skinny straw
Step 4: Sticking the skinny straw to your Pterodactyl
Bend the cut sides of the skinny straw back and tape them to your dino.
Step 5: Preparing the bigger straw
Then split your big straw, using your scissors, until about half way down. Then bend the now split sides of the straw back, like in the photo