Part 1 - Detecting rabbit warrens
Active rabbit warrens were detected via thermal imagery in both
high-density and low-density areas (Fig. 1) using the Jenoptik. Rabbit
warren entrances were detected under vegetation, including under
blackberry (Fig. 1b) and where they were obscured by serrated tussock.
No inactive rabbit warrens were detected by any of the thermal imagers
during this study.