Hard disagree on the mockingbirds. Fuck those guys. A long time ago, I had one singing less than a block away all night, every night, for the whole summer. Loud enough to be heard with the windows closed. I either didn't try earplugs (this was a long time ago), or maybe they just didn't work for me. It woke me up and kept me awake for long periods due to the unpredictability of its song. By the end of the season I was seriously considering getting a bb or pellet gun and shooting the thing. Not to kill it, just to get it to shut the hell up. I still can't hear one today without getting vague twinges of anger over all the lost sleep.
Fuck those guys.