Hi Matia from the beautiful paradise of Wanaka - are you near the Lake and Puzzling World?
The Opossums you refer to are they the possums that were imported to NZ from Oz and have now become pests in their millions? Our Australian indigenous people used the possums for thousands of years to sew together
possum skin coats to keep warm - so it sounds to me like the NZ'ers are being very creative and sensible dealing with the overpopulation of possums in this way. Go fer it!!