Automatic chicken farm

This is a map to a fully automated chicken farm, works flawlessly and without flinching a finger. You must only put more chicken in the pool ;)
The map only works on the 1.5.0 or with a snapshot. So it'd have to raise it in order to play the map ;)
Have Fun!

PS: Does not check the built-in download link! There is a small error in the circuit!