3/2     how do i deter flies from flying around my back yard?  i suspect
        the pigeons in my neighbor's back yard is attracting those flies.
        \_ flypaper.  For the larger problem, Alka Seltzer + cats.
        \_ RAID.  Or poison the pigeons.
           \_ I really don't understand how disk arrays would prevent flies.
        \_ Some sticky yellow tapes which attract flies and sticks to them.  I
           don't know what they're called.
        \_ the number of flies is too many plus it's outdoor.  sticky
           paper won't work well in this condition.  i just want to see if
           there's some non-destructive and environmental friendly way.
           \_ what about those things that emit sound on frequencies annoying
              to insects? i've always wondered how well they work, though.
              \_ what about those "bug" lights?
                 \_ i think those attract bugs and fry them, as opposed to
                    just keeping them away in the first place.
           \_ Actually I've used flypaper outdoors to great effect.  Had
              what seemed like a zillion flies zipping around, the paper
              worked well.  Put up about a dozen strips, and the flies
              were all stuck to the paper within a few days.
        \_ frogs
        \_ part of Fly's life cycle is that its larvae need to be hosted in
           dead animal / decade flesh.  You might want to find out the source
           of these dead animal near your back yard.  Once you are able to
           cut the part of fly's life cycle, you will able to cut number
           of flys significantly.  This is the only effective way for dealing
           with Flys (aside from massive DDT/pesticide  spread).