Invasive species are a HUGE problem in many parts of the world.

On the micro level, I feel sad for these birds and hate to see them killed.

However, on the macro level, invasive species DO need to be curtailed. Humans almost ALWAYS cause unforeseen and unmanageable problems when they introduce non-native species into an environment, whether intentionally or not.

Perhaps a humane organization will step in and find a more humane means of removing to birds. Nets? Traps?