Inside our own little hollow, when they set up a yipping and yelping and yowling and howling, let me tell you, it'll make your hair stand on end.
And then the dogs join in. Ours and the neighbors' and the wild ones, groaning and growling and howling right along.
The sound bounces and swirls around our hills like an audible mist - obscuring normal sounds and combining them into unrecognizable facsimiles of what they should be. It's unearthly.