Brick Sorting Bird

Here's a great little project.  But this is different because this sorter doesn't have any brains, it simply uses an ingenious mechanism to to "measure" the length of the brick and then pick up and move the brick to the appropriate location.  According to MisterFitzGibbon..

"How does it work? When the beak can close no further, power is transferred to turning the bird. If the beak closes on a larger brick, it will begin turning earlier, and thus further, before dropping the brick."