The sound Fox Whislte that FoxPro had for some time, and I don't think is any longer offered, is a distress sound made on the infamous "Fox Whistle" that is so popular in Australia and Great Britian. I ordered three of them from England and they make an awesome distress sound. There are some You-Tube clips of the Fox Whistle being manufactured and some of it's sounds, how to use it etc. Australian Tom Varney has a video out where he is calling Red Fox while using the Fox Whistle, an amazingly effective rodent/rabbit distress sound, expecially on Reds.
The Red Fox Rally is a locator sound that is often used when a pair of mated foxes are hunting together, in order to keep track of each other's movements when seperated by a gully, creek bottom, hedgerow etc during the hunt. I have witnessed this on several occassions when just sitting and observing foxes together as they hunt during the summer time, it is simply a "Hey, I am over here, are you still over there" sound. Can also be used as a locator for the opposite sex. When not used by a mated pair, it is simply a curiosity arouser from one fox to another.
Hope this helps clarify the subject matter for you. Check out the You Tube listings for Fox Whistles, slightly difficult to master, but once you do have it, it will produce.
