To be clear, an electric fence isn't like 400 streaming amps when you contact it. Most chargers for hotwire are pretty mild and really don't give much of a shock since they are pulsating.
Watermelon 123,
the hawk might just be going to nest or it has found another temporary food-source. Why can't you have an electric fence where you live?
As previously stated, you cannot keep them away without exterminating them. The easiest route is to just build an impenetrable fortress for them to sleep in at night. Going the dog route can be good but obviously that is a big commitment.
Occasional losses should always be factored in if the...