Whistle off-leash

How’s your assistance dog’s off-lead recall? Whistle is an amazing assistance dog and he spends a lot of his time working with me. However, I try to give him several times throughout the day and evening when he can spend some free time in the backyard relaxing and just being a dog.

When he and I were first working together, I really had a hard time getting him to come back to me whenever he was off-lead. He was thoroughly enjoying the sunshine and outdoor smells and was in no hurry to come back inside.

I tried to entice him by making it worth his while to return. I began offering him a tasty treat whenever he would come when I called. That strategy has been pretty successful. However, lately, it seems that when he goes out for his free time in the backyard, he is less anxious to come back inside when I call him.

I was curious if anyone else has this issue with their assistance dog. If so, how have dealt you with it?