A method for monitoring movements of an animal, wherein the animal is provided with a device having sensor means (2) for detecting movements, and generating at least a signal with information about detected movements of the animal. The device is further provided with a control unit (4) for processing the information in the signal and for storing the processed information and transmitter means (10) for transmitting information stored in the control unit. The method comprises:storing in the control unit a number of predetermined-type movements counted during a predetermined set of periods which comprises a number of successive first periods, and transmitting a number of the stored numbers of counted movements at moments which depend on the number of detected predetermined-type movements in at least one of the past first periods and/or depend on at least one of the stored orientations of the sensor means.
