In the following photograph, Brent the Mushroom Hunter is carrying a chainsaw.  Attached to his backpack is a hardhat and a pair of earmuffs, both examples of reasonable chainsaw co-cargo.  Poking out of the backpack, however, are, according to my count, six small sticks.  The photograph, therefore, is a mystery and, thus, a riddle.

Anyone want to try to solve it?