Sometimes my cuckoo doesn't cuckoo at all, or at least not when it should.
A: Your clock is probably in the nighttime range. These clocks are meant to be silent between approximately 10 pm and 8, or 9 am. Move your minute hand (so that the hour hand follows) clockwise several hours until your clock starts cuckooing again. Now you are in the daytime range.

My cuckoo clock is cuckooing way too many times. Sometimes it cuckoos 15 times!
A: Remember that your quartz cuckoo has an echo. Other sounds are playing too; for example, there is another kind of bird that starts the hour chime, then the cuckoo, his echo, and music. Be sure to only count the louder cuckoo calls - without their echos.

My quartz cuckoo clock isn't cuckooing the correct number of times. How do I sync the bird with the hands? 
A: There are two methods for this. You could press the setting button several times, equaling the difference between what the hands show and what the bird is calling. Count the number of calls first, then push the button to bring it up to what the hands say. You could also move the hour hand (independently of the minute hand) to match the number of calls the bird makes