Pest control in an "open" system is in-exact science before you even start.
To understand what can be achieved native ecosystem restoration and especially bird numbers, a much better example to look at would be any of the fenced sanctuaries (Zealandia, Orokonui, Maungatuatari) or many of the off-shore conservation islands.
Just before he passed away, Sir Paul Calaghan delivered a very interesting lecture on using the fenced sanctuary concept to create a chain of ecosystem reservoirs, surrounded by buffer zones. You'd still need to use something like sodium fluoroacetate for the initial pest eradication, and depending on monitoring use that or another poison for annual pest control, but most likely at significantly reduced levels.
I do not see dumping tons of poison into the environment as viable long term solution.
Bookmarks