To evict or not?

Meet my porchmates. A mom and 3 babies.

I new I had a bird that liked to visit my porch, but didn't realize they made their nest there until I threw the leftover water from dish washing out the window. I pissed off the mom, she flew away. Then she came back ready for revenge! Luckily for me, I had just closed the window.

So the question still remains....do I evict my newest neighbors or welcome them in??