Each snake was identified to species level in the net and, if large enough to
facilitate blood collection (>40 cm snout to vent length [SVL]), a GPS waypoint
was recorded at the point of capture (Garmin, GPSmap 62) to facilitate release
within a 1 km radius of capture. Initial capture was primarily of H. curtus, H. elegans
and H. peronii, which was consistent with a previous study in Northern Australia
(Heatwole, 1975; Redfield et al., 1978), and subsequently only these species were
captured.