RE: Car scouting
I'm no pro by a long shot, but I wouldn't be calling to birds unless I'm hunting. Why educate them and make them call shy? I don't see any problem with driving along, stopping, shutting the engine, and using a locator call though, like a crow call. When I do this, I'm sure to turn off the engine and get out of the truck. If you don't, you may never hear them respond to your locator.