The majority of our native birds are defenseless against cats. For many centuries they have lived here with very few predators to fear, possibly the NZ Falcon being the most common predator. Therefore our birds are more susceptible to attack as they are more docile, often eating low to the ground where they can readily be attacked...
Register all cats and use the money to protect and preserve existing native bush and their inhabitants.
(Would prefer to see them all gone but don't think this is realistic)