GHO = Great-horned owl.
Weather impacts my fence as well, especially where bamboo falls over to create dead shorts. If lightening strikes ground anywhere near close, then breaker prone to trip as well. Predators, if like my dogs, can learn when fence is hot. based on cameras they do check...
If event repeated, then consider placing a small light in coop so chickens can see predator and give alarm call to alert dogs. My hotwire keeps out ground predators, but not GHO so light helps chickens inform dogs of predator visits in real time. Light need not be strong enough to provide...
How does your dog handle the fireworks? Mine are coming out of the field and cowering where they act asleep but clearly are not. The following say the dogs are exhausted even though they did little to protect.
I am getting a new pup in the next few days.
For next year or so I would be integrating a little hotwire into your setup. Will fill gaps left open by dogs and may help control losses stemming from dog themselves.
I think you will be OK if you post indicating LGD on duty. Ideally, visiting public will know not to bring in dogs.
I have had mine really maul and and in a couple instances kill another dog. So far no real problems of the legal sort.
Two pups without an adult will require more effort on your part. They will egg each other on when it comes to causing trouble. You are two years away from being able to trust them with chickens without supervision. You will have protection from foxes on down within 6 months.