  A thorough search of the sky exposed at the Pierre Auger Cosmic Ray
Observatory reveals no statistically significant excess of events in any small
solid angle that would be indicative of a flux of neutral particles from a
discrete source. The search covers from -90 to +15 degrees in declination using
four different energy ranges above 1 EeV (10^18 eV). The method used in this
search is more sensitive to neutrons than to photons. The upper limit on a
neutron flux is derived for a dense grid of directions for each of the four
energy ranges. These results constrain scenarios for the production of
ultra-high energy cosmic rays in the Galaxy.
