I was reading in the newspaper the other day that a new bird has been discovered in this very area,it has no legs and is named after the cry it makes when it lands,the oomegoolie bird is believed to have originated in this area and if you listen carefully you may even hear its sound today.
You are looking for a black container clip box,about 6 inches long and about 3 inches wide,there is enough room to take a small TB,and there is also a small amount of online currency for the first to find.
Please be careful when finding this as the nettles/thorns are horrendous though not many there but the ones I encountered on placing gave my leg a good pasting.