We cannot play with fire. We have warned from the start that the ibis should not be here. Now it is nearly too late.

They are nomadic, gregarious, aggressive, omnivorous and highly adaptable. We also believe they are a growing danger to indigenous bird life.

It will be hard to shoot the ibis because people will certainly say we are being cruel and try to stop us. It's bizarre but it makes a difference that they are white. If they were black, no one would care. It's utterly irrational but that's how people are.