While they may call it …

While they may call it 'hunting', it is actually a cruel slaughter. This is obvious since the changes also will mean the bird carcasses can be left to spoil. The argument that these birds destroy ecosystems is ridiculous, they are a naturally occurring native bird, so basic ecology and common sense would tell us they would not survive as a species if they destroyed their own ecosystem. And while their droppings can kill their nesting trees, the nutrient-rich guano will lead to a new round of healthy plant and animal life. As for the fact that they are 'eating all the fish', they do eat fish, but only 2% of their diet consists of commercially valuable species, and they actually eat invasive fish species.