Parameter	Mean	SD	Range	Sample size
Height above the ground (m)	3.3	3.4	1.0–15.0	21
Depth (cm)	13.8	1.47	11.3–16.0	10
Lateral diameter (cm)	7.2	0.5	6.5–8.0	9
Front diameter (cm)	5.8	0.9	4.2–6.5	6
Entrance hole diameter (cm)	2.5	0.2	2.0–3.0	10
Tail (cm)	12.0	6.8	7.5–23.0	4