Yeah I get that . We have issues here with secondary poisoning with 1080 ( I think NZ is one of the only places still using this stuff ) . Our Department of conservation ( DOC ) likes to blanket bomb large areas of bush to kill possums . They kill lots of native birds that they ( and others ) are spending lots of money and time trying to save via other govt agencies like forest and bird ( Twig n tweet ) , they kill deer , Thar , Chamois and when they overshoot the boundary of the target area we get stock and pets . I heard that on one west coast block the cost verses the tally put each possum at about $90nz each but they steadfastly refuse to put a bounty on them .