  The High Resolution Fly's Eye Experiment (HiRes) measures cosmic rays (CR) at
the highest energies using the air fluorescence technique. As data taking on
the Dugway Proving Grounds in Western Utah is finished, the HiRes data are
relevant for cosmogenic neutrinos in two different ways. We first use our best
fit to the measured HiRes CR spectrum together with a model of the
extragalactic CR sources to derive the expected cosmogenic neutrino and gamma
ray fluxes at Earth. We then use the HiRes data directly to set competitive
experimental limits on the electron and tau neutrino fluxes at the highest
energies.
