For example, prior to a joint 1080 poison operation undertaken by DOC and the Animal Health Board in Tongariro Forest in 2006, 32 kiwi chicks were radio-tagged.
While still in his teens, he began a series of expeditions in his spare time, joining a party to scale Mount Taranaki in 1857, for example, and undertaking a journey in 1858 up the Mōkau River to Taupo, Lakes Rotomahana and Tarawera, the Tongariro-Ruapehu area, returning via Rangitikei and Wanganui.