Well, what do you?
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I think it would have to be pigeons for me. They are beautiful, smart birds that can recognise faces and they are called rats of the sky. Pigeons have not caused anything to go extinct (in my knowledge) yet rats, they have made quite a few species extinct by eating their eggs.
Pigions are mourning doves are related, and people are always like mourning doves and hate pigeons. It is weird