If you haven't seen the wonderful bird automata created by Bliss Kolb, you've been missing out. The artist has now released a kinetic paper kit, which also features a bird.
Once you purchase the Moving Paper Crow, you will then cut out the pieces and put it together using thumbtacks, white glue, and a pin. That's it! When it has been assembled, push down on the lever to see the crow stand up, raise its head, and opens its beak. The package includes all the necessary patterns and instructions. (You supply the tacks, glue, and pin.)
Here is where you can get the Moving Paper Crow kit by Bliss Kolb