Computer Analysis of Animal-Movement Data Obtained by Telemetry

while sometimes they seemed to spring magically from nowhere. Some of them ran ahead of the line while many were entirely confused and dashed back through the noisy driving line. ... At the finish . . . all the deer that had been moving ahead of the drive line broke cover by the dozens and streaked between the counters . ." The behavior of Deer No. 502 during the drive appears to be similar to that described above. This doe approached the drive line twice and turned back each time. On the third attempt she ran between the drivers and then raced northward for nearly a mile before slowing. We believe that this extensive movement outside her normal range was caused by panic or fright due to the noise made by the drivers. This ry clump of trees or bushy thicket ile sometimes they se med to spring ica ly from nowhere. Some of them ahead of the line while many were animal's radio was noticed by a driver as the deer approached the drive line. The driver shouted to the others, and the doe "spooked" away from the line. Deer No. 503 was apparently "surprised" by the drivers and made a short dash through the line, probably with several other deer, and then stopped its flight, without moving outside of its normal range. Its radio was not noticed. Both deer were within their regular ranges by late evening. The disturbing effects of the drive appear to have been very short-lived since we could not detect any difference in the range of movements or the activity patterns of the deer immediately following the census. Probably deer react similarly to hunting, and we hope that the radio-tracking system can be used to evaluate responses to hunting in the future. BIBLIOGRAPHY