I think locator calls and bird responce vary a great deal by region. Around here I have a lot of luck in the morning with owl calls. When I have hunted in Georgia you could nnot buy a response to an owl call. I have limited success with crow calls, but carry one anny way. The peacock/ woodpecker has worked well for me, better than the crow. I t seems to vary day to day sometimes. Like all turkey calling, it helps to have a variety and see what works.