Good on ya for not killing the harmless fella. Of course those chicks mama and daddy would beg to differ! I love watching the birds and all but it does create quite a mess directly under the nest.
We just had a set in a nest under the deck fledge the other day. Wife comes in and says they flew out of the nest. She was under the impression they would fly back to the nest.....told her I don't think that is how it is supposed to work.