Just a note on electric fencing. In order for Hot Wires to work well.... the ground needs to be a good conductor. Meaning,, it needs to be somewhat moist. If predator stands on green vegetation,, that will conduct the ground to hot wire shock... If predator is standing on drought parched ground,,, not much shock will occur.I'm interested since it's not electric... but wondering if it's too good to be true.
Individuals that hotwire coops, usually run two wires not far apart. A climbing predator is likely to touch both wires at some point,,,, hence the shock gets administered.
For an airborne jumping predator,, once in the air,,, not likely to get shocked with the common setups for homeowners to purchase.