checked the location of each animal at different day hours, whenever
it was logistical possible. Once the animal was located in the
resting structure, we took a considerable care during the approach
in order to not disturb the animal. To avoid wrong locations, a
snake inspection camera (model: 8802 AJ GOSCAM, TFT-LCD 2.5
colour monitor) was used several times to guarantee the correct
distinction between ground nests vs. dens, and tree hollows vs.
nests. All locations (coordinates) were recorded using a GPS unit
(model: Garmin Map 62; 2 m positional accuracy), and then a detailed
microhabitat vegetation description was made (see below).