I’ve found absolutely the only way to secure chickens, ducks, geese from predators is to put them in high security lockdown at night (hardware cloth, 2-3 way locks, wood, no gaps, wire to prevent digging or solid bottom) and an electric fence or netting. I put my ducks and geese that can’t fly IN a section in my carport that’s closed off with a door and leave the light on all night.
These items combined are highly effective for me, just requires a lot of extra effort to stay on top of each coop’s structural integrity and the health of the fence. (Just got a fence charger that puts out 8k+ Volts around an acre - yeah, it’s great.)
If you rely on the efence only, the one night it happens to get grounded or downed, the predators will come. They are ruthless on a wood line, too, so I’ve seen some things. The opposums will jump from trees to get over the fence even. It’s awful!!
You can find deals sometimes on hardware cloth if you’re needing to replace the chicken wire. Check out Nextdoor or Craigslist for construction sites dumping it. You can get garden wire to lay on the ground and pin with garden hooks to create a ‘dig proof’ barrier around your coop, too.
10 years of owning birds and it’s amazing the amount I can recount lost to just one slip up. Best of luck, terribly sorry for your loss.
