Mockingbird! Yes, those lovely loud birds!
Growing up there was one that lived in the tree by my bedroom, and he'd do CAR ALARM sounds at 2AM.
I have ALWAYS had insomnia, though, and was often already awake and just laying there, so I felt a kinship with my loud feathery neighbor. I'm still fond of Mockingbirds because of it.
I also know those birds mate for life and can be very vengeful - we had a family cat that killed a mockingbird and then could not go outside again for several years because the mate of the bird she'd killed was watching and waiting for her to step outside. The bird would swoop her endlessly, and peck holes in her head! (My cats are indoor-only now that I live on my own!)