I personally have not heard…

I personally have not heard an argument as to why these birds should even be allowed to prosper. They don't serve any purpose in the ecosystem from what I can see. All the areas that they eventually move to, inhabitants and nest in turn to wasteland. They destroy property and lands that people own and make it virtually useless and unable to sell.

If the ministry monitors the population and sees that they are nearing a more desirable population, they can just close the season. However a large daily limit will get things under control in a hurry.