Year round monitoring is conducted by biologists using field observations and tracking the birds with radio telemetry. Many birds on the refuge are outfitted with a radio transmitter. Using antenna equipment, biologists track the signal produced by the transmitter.
The cranes are also outfitted with colored leg bands. Band combinations are unique to this bird and allow the birds to be identified from a distance.
The information obtained through monitoring and tracking is put in a refuge data base and provides clues to habitat use, nesting, survival rates, cause of mortality, and many other aspects of local crane life.