"Bigfoot" howling at Whelen wail

[bigloudnoise]

Sounds more like a dog to me, but regardless, here's a distant Whelen in wail tone, unknown location or model (It sounds to be omni-directional though). Slight echo makes it sound a little spooky, but then again that can be said of almost any siren.

http://www.youtube.com/watch?v=XWxUL0ohLfk