TABLE 3.

Scores from a written usability survey completed by five observers that participated in night‐time surveys using four devices to detect artificially heated Plains‐wanderer models in native Victorian grassland.

Survey category	Spotlight	Low‐resolution thermal scope	High‐resolution thermal scope	Medium‐resolution thermal scanner
Ease of conducting surveys	50	33	44	40
Ease of detection	42	24	47	45
Physical comfort	39	31	41	42
Suitability for detecting small endotherms	15	6	25	23
Total	146	94	157	150

Note: Responses were provided as a score out of 5 (1 = strongly disagree, 2 = disagree, 3 = neutral, 4 = agree, 5 = strongly agree). The three categories dealing with ease of use and ergonomics each consisted of two questions (maximum available score of 50), the last category assessing suitability for target endotherms consisted of a single question (maximum available score of 25). The total available score for each device was 175.