i call when there close, real low purrs to keep them interested until they are in range unless i know they arent going anywhere and only with a mouth call once my mouth call fell out and i was just sitting there with the bird in range behind a tree and i whistled lightly and the bird stuck his head out to be curious and his curiosity of what its like to be buttered with orange halves toothpicked to him and put on a grill was satisfied