As cool as it is to get bull pics on cam, Id be worried if thats all it is. If you have no cows hitting your salt those bulls will be gone come late Aug. I would much rather have lots of cows on a cam cause for sure some bulls will show up in late Aug. People get to caught up in hunt hunt dates and the rut...In all the years I have chased elk I have yet to find a herd of cows in late Aug and early Sept that doesnt have a bull with them and Im not talking a spike bull either.