This is almost certainly to do with the light sensor. There is a sensor mounted in the leg area that detects daylight. The system is programmed to switch on in the morning and off at night. If you switch the bird on at night or in a room that is poorly lit it will run once and then shut down. If you run the bird outside during the day and the battery is holding charge and yet you still get the bird shutting down after one cycle, this may indicate that the sensor is defective.
← Sometimes when I switch on Robop only moves once then stops. Why is this?