Known invasive species that primarily consist on kibble purchased for them by humans. There is no evidence that they have an adverse effect on bird populations. The birds they kill on birds that would have been killed by some other predator some other way.
Yes but so do foxes, birds of pray, wild cats if your country has them.
Yes
Sorry is it your position that invasive species are fine?
Known invasive species that primarily consist on kibble purchased for them by humans. There is no evidence that they have an adverse effect on bird populations. The birds they kill on birds that would have been killed by some other predator some other way.