Here in Missouri during the turkey season if you are hunting or assisting another hunter you must have a current tag - unfilled or filled either one works. Now, say someone wanted to photograph some turkeys they would not need a tag. In fact, if they have a CCW license they could be armed with their handgun. But they better have some convincing camera or video gear along I'd think.

In AZ, a person is not considered to be hunting unless they have the means to kill or capture wildlife in their possession. So a person would not need a hunting license if they are unarmed while calling wildlife.

AZ also recognizes your second amendment rights to carry a gun for personal protection if the weapon is not used for taking wildlife.

A.R.S. 17-305
Possession of other weapons while hunting;
violation; classification
A. The possession of legal weapons, devices, ammunition or
magazines, which are not authorized to take wildlife, is not
prohibited while hunting if the weapon or device is not
used to take wildlife.
B. Taking wildlife by using a weapon, device, ammunition, or
magazine that is not authorized to take wildlife is a class 1
misdemeanor.