This is the Birdcage Clock.  Not a traditional cuckoo clock but has the bird in a cage above the clock.
During the call of cuckoo the cuckoo bird flaps its wings and opens it beak to the call of cuckoo.  This clock was winner of the VDS Best Black Forest Clock of the Year Award for 2003 and is made by Rombach und Haas.  This clock is currently in stock at the Cuckoo Kingdom.

Birdcage Cuckoo Clock