Question

How might this new difference in the birds contribute to their destructive nature?

Answer 1

I have not read this book before, but have done some digging. It seems that the birds are highly intelligent and don't feel the need to have humans around. They know they have strength in numbers so they put it to the test. I hope this helped, if not, that's alright, I haven't read the book. If it does help, I'm glad.