A captive A. nicobarica has been recorded creating a burrow in soil and roofing it with debris which suggests they can be flexible over their selection of refuges. When any of the tusked wētā are provoked further they display " mandible gape", "raise foreleg" and "raise head" which closely resemble a suit of components displayed by Hemideina species.
In a captive setting, A. nicobarica has been observed building burrows in soil and covering them with debris, demonstrating its ability to select shelter options flexibly. When provoked further, tusked wētā exhibit aggressive behaviors including "mandible gape", "raise foreleg" and "raise head" postures that are reminiscent of the defensive displays of Hemideina species.