I was getting ready to go to bed, and was opening my window and right after I did this godawful, high-pitched, raspy shriek of death starts right outside our building! I almost had a heart attack. It sounded like a baby cougar getting strangled or suffering extreme violence. It was awful. I literally fell back onto my bed and was thisclose to screaming. And it kept going and going! For a good 45 seconds! This hideous, tortured, desperate and completely not-human sound! It sounded like a fight or a murder, like something was dying. I just... that sound! *shudder* Jesus, it was bone chilling, and that is not conducive to a good night's sleep.
I have no idea what it could have been. I think that's what's so disquieting. I literally cannot identify that sound, aside from the fact that it was a living creature, and it was shrieking in fear and rage, and it may not be living anymore. Also, whatever may or may not have killed it may still be outside and this is so not cool.
I am so going to have a paralyzing nightmare now. Omigod, hold me. *hides under duvet*