> >>He set a feeding station on a tower about 65 feet
> up. Stingless bees could bring recruits to it (88
> bees in 30 minutes). Honey bees could not bring
> recruits to the top of the tower.

.
Most tree canopies start at 20 feet or lower above the
ground.  If the source were blooms on trees the bees
definitely find those blooms; i.e. red maple, black
locus, tulip poplar, ti ti, sourwood, to name a few. 
These are vertical sources and the bees definitely
find those.

Mike in LA


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