I have a called in Reedbuck, Zebra, jackal, Lion, Duiker, Steenbuck with mouth calls. Thinking about it, just about any territorial animal should respond to challenging calls! When animals have been spooked during a stalk, I often use a long high pitched whistle to get them to stop and look back. Most often fatally! I have used this for Zebra, Kudu, 'woundebeest', Impala, Eland, Buffalo, Sable!