Be sure you have played all of the other whistle recall games before this one, as this one will tell you if your dog truly understands the “tweet tweet tweet” whistle sound or not. Have lots of high value rewards ready to party for at least 15-30 seconds with your pooch in close proximity when they come running to you.
Remember if you are using the whistle recall for emergencies such as calling your dog off of chasing wildlife, you need to always to building up the value that your dog sees in running back to you immediately and without hesitation when they hear that whistle.