KATHMANDU: A radio collar is a device with small radio transmitter that when attached to a wild animal can be used in tracking their movements by radio telemetry. Using it, one has to go on the site to record the data. Some radio collars use a wire imbedded in the ground to transmit signals to the receiver. Other forms use only a transmitter box and the collar avoiding the wire. Likewise, GPS Collaring is a process used by biologists to explore the fine scale movement or migratory pattern in free ranging wild animals using the GPS. GPS-enabled devices normally record and store location data at a pre-determined interval automatically. These data may be stored pending recovery of the device or relayed to a central data store or internet-connected computer using an embedded cellular radio or a satellite modem.