I don't know how many television shows I've seen that have captured the banshee's wail. It's a horrifying scream heard in the middle of the night for no apparent reason and no immediate location, and worst of all it means you're going to die soon. But in reality it's the red fox, which not only makes a blood curdling cry, but a horrific face to match. I was in my late twenties the first time I heard one, so I don't fault someone for not realizing that a nocturnal mammal in the woods makes the sound of wailing death, especially since most people will never hear it in their lives. Raccoons also make weird noises. Most of them I can't really describe in words, but they also growl, and some even sound like those dwarves off of those Phantasm movies and can scare the crap out of you when they come out of nowhere. When you're in the wilderness, you're in their territory, and most animals will freeze in their tracks as you walk right past them, oblivious they are even there, and especially at night. That's why you never see them, including full-grown deer, or bigfoot, when you're walking a trail after the witching hour. It's unforgivable when people take these sounds to wilderness "experts" who have never heard of it, well, unless it's Sasquatch howls, or some other noise no one knows for sure that they are. Some of these noises can invade the home as well. I'm not suggesting that everything you hear in your home is a Mothman, but mice will mimic a lot of things people report. Things being knocked over in the middle of the night, things vanishing, etc. Mice can be very noisy in their hunt for food. If it is light enough, they'll run off with things like candy bars, and often make a lot of noise doing it. Their communication can sound like whispers, because your ears barely hear it and then the brain tries to find some pattern in it, until it convinces you someone was whispering your name. They can be lightning quick, too, so if you see something out of the corner of your eye, chances are, they're the cause. And unless you trained them to not get on furniture, they can climb, too. Luckily, they tend to shit a lot, especially on the floor against the wall which makes them easy to detect. Domestic cats aren't the best at rodent eradication these days, so don't use their presence as your evidence you don't have mice. Of course, it could be other animals in your house as well, so don't forget to rule them out before you assume you have some type of haunting.