David wrote:

I've also had excellent results with solid steel wire, which is $4 for
120 feet.


I used plastic coated clothesline wire for years. It's stranded steel
and is super strong. The ends were over a hundred feet apart and it was
stretched pretty tight. Never any sagging due to ice. A split bolt on
each end held it around the insulators.

The cast from Alfred Hitchcock's 'The Birds' never showed, so I can't
comment on hundreds of birds perching on it.



mike