Like other species, the issue is not the supply of birds, rather the presence of predators in the habitat.
The greatest defence of a flock is its social structure, the alpha male etc.
It does work, has worked, often, in preditor prone enviroments. Many of the flocks sightings DoC attitubutes to kakariki moving locations, just happened to have a private beeder living not far away, often around that time moving from kakariki into other species.
Also doesnt float unless
1/one believes that kakariki and all our native species are unque over other bird/parrot species like rossella, lorries, sulphur crested, and all the established introduced birds.
2/Where has anyone done research on flocks with established social structure, released into city parks, researves and forest aroud cities?
3/How is it there are many small established flocks of kakariki, struggling for decades in very high vermin totally uncontrolled locations.
4/Even before the introduction of vermin, we had many, now extinct species that where very efficient preditors
In most cases we need predator control
Yep no doubt about that
so instead of breeding unwanted birds, how about doing some predator control in your local park instead?
As I said above, their are many bird/wild life breeders who can no long physically do that sort of stuff, plus try getting permission from local government to lay traps, poison stations, or even shoot vermin in a city park.
