We featured artist Bliss Kolb many times here on The Automaton Blog. He's made some stunning bird-themed automata. He's now offering some lovely paper automaton kits such as the robin shown here. Once cut out and assembled, you lift up on the lever. This causes the robin to bend down and grab a worm. Halfway up, the robin loses the worm and it slides back underground.
Here is where you can get the Moving Paper Robin Kit.