The dogs are not "rescue" dogs that is dogs that rescue people, but dogs that are abandoned or feral. They should shoot the feral cats as well . Some local councils are responsible for the control of feral animals and there are a feral dogs in those outback places which kill stock. Sidney BTW is spelt Sydney.
Wild dog fence, the longest fence in the world.
Wild dog simply bulldozes under fence designed to stop it | The Land | NSW
The only difference now we are included in the New South Wales covid fence.