the roaming dog gone wild in NZ's back country

Size
Height: 50–70 cm, Weight: 15–40 kg
Lifespan
8–15 years
Diet
Carnivorous. Feeds on small mammals, birds, livestock, and carrion. Hunts in packs, using cooperation to bring down larger prey. Descended from domestic dogs that were lost or abandoned.
Habitat
Native forest, farmland, coastal areas and even the outskirts of towns. Found throughout New Zealand, especially in the North Island and the West Coast of the South Island.
Range
Found throughout the North and South Islands in native forest, farmland, and coastal areas. Most common in the North Island (particularly Northland, Waikato, and the East Coast) and the West Coast of the South Island.
Endemism
Introduced
Main Threats
None. This introduced species is a pest in New Zealand. Controlled by DOC and regional councils through trapping and shooting where they establish. Feral dogs are not as widespread as other pests, but can cause significant damage where they occur.
Population
Introduced, but localised. Feral dogs are not as widespread as other pests, but they can cause significant damage in the areas where they establish. They are often the descendants of working dogs that were lost or abandoned.
Conservation Status
Introduced
The ghost of the working farm. A dog that has gone wild. It looks like a domestic dog, because that is what it is. But feral dogs are leaner, meaner and have lost their trust of humans. They often travel in packs, hunting together like wolves. Their colours vary, including black and white, tan, brindle, and spotted, but they all share the same instinct: to hunt. A dog that is a wolf again. These animals are the pack hunters of the forest edge. They kill sheep, goats, deer and native birds. A single pack of feral dogs can decimate a farming community, killing dozens of sheep in a single night. They are also dangerous to humans, though attacks are rare. Feral dogs are smart, wary and incredibly difficult to trap or shoot. They learn quickly. A dog that has seen its packmate caught will avoid that trap forever. Feral dogs have a sad origin. They are the descendants of working dogs that were lost, abandoned or ran away. Some were pets that were dumped in the bush. They form packs, breed and raise puppies that have never seen a human. To see a feral dog is to see a tragedy. An animal that should be working on a farm or sleeping by a fire, now running wild in the bush, killing for survival. The pack structure of feral dogs is similar to that of wolves. There is an alpha pair, a hierarchy of subordinates, and a constant competition for status. The pack hunts together, shares food together, and defends its territory together. The forest edge is dark. The pack of feral dogs moves through the shadows, lean and mean, hunting. A sheep dies. The dogs eat. They do not know they are a tragedy. They do not know they were once pets. They just want to survive. The feral dog is a problem without an easy solution. The feral dog is proof.