When my son had his "working holiday" with a cattle station in the outback, he had an unusual job one day. It was the "poison the dingos" day. My recollection of the story is that they kill a cow and cut it into chunks. The government man comes and injects each chunk with poison. They load the poison chunks into a plane with the door removed. His job was to toss the chunks out of the plane. (May have been a helicopter, but I think it was a plane. They used helicopters to drive cattle out of the brush.) Apparently there are too many dingos there and this is a normal control measure. In the pictures, they just looked similar to what we would call a red heeler.