KooKoo has given the cuckoo clock a modern design: clear, simple, and pure in black or white. The colored birds and pendulums can be combined and easily swapped according to your preference. KooKoo brings nature into the home. At BirdHouse, a bird appears every hour and calls once or multiple times, corresponding to the hour. There are 12 authentic, nature-recorded songs of native songbirds and the call of the cuckoo to choose from. At night, the birds go to sleep. A built-in light sensor ensures a peaceful night in the BirdHouse.