A Predator broke welded coop & killed two of my girls.

[Folly's place]

Worrying about what two big dogs can do is why we have the hardware cloth and woven wire both, and very well attached. Electric fencing when bears arrive!
Once we had ten free ranging hens killed in the afternoon by a sick mangy fox (seen by workmen next door!). I let all the neighbors know about it, and the fox was shot a week later one mile up the road at another coop. He came back here but we couldn't get a safe shot at him
Our other worse episode happened when our Invisible Fence failed, and our fighting dog rescue dug under our 'real fence' and killed over twenty free ranging birds, in about an hour. The jerks who develop fighting dogs train them to be efficient at killing small animals, awful! So, one small dog, lots of damage in a very short time. It was a very bad day here.
Mary

 

[Project Blue]

Dangerous dogs are known for stalking livestock, destroying fences, killing small animals and attacking children or the elderly.Sounds like the Sheriff needs notified

I did call sheriff and an animal control officer came out with a trap. It's small town Alabama and country where people routinely have loose animals. It took a lot of work on my part to even find out where the dogs were coming from. It's a rental across a highway about 1/2 mile driving through the woods a lot shorter distance to my coop. I also found out the owner is an elderly widow in the next town. I really hate the thought of stressing her out and is one reason I'm slow to act. Courts are very slow and even if you get a judgment you have to keep filing to get anywhere. Ironically, the house the dogs are coming from has a NO TRESPASSING sign at the end of a long driveway. I had already bought a large trap and it kept catching cats and other innocent animals right away. Used the animal control one night and asked them to take it away, since I have to be gone long hours and felt really bad about leaving a cat in the trap for 12 hours one time.

 

[McChooky]

I did call sheriff and an animal control officer came out with a trap. It's small town Alabama and country where people routinely have loose animals. It took a lot of work on my part to even find out where the dogs were coming from. It's a rental across a highway about 1/2 mile driving through the woods a lot shorter distance to my coop. I also found out the owner is an elderly widow in the next town. I really hate the thought of stressing her out and is one reason I'm slow to act. Courts are very slow and even if you get a judgment you have to keep filing to get anywhere. Ironically, the house the dogs are coming from has a NO TRESPASSING sign at the end of a long driveway. I had already bought a large trap and it kept catching cats and other innocent animals right away. Used the animal control one night and asked them to take it away, since I have to be gone long hours and felt really bad about leaving a cat in the trap for 12 hours one time.

Cats won't usually go in one but once.I hope you have an apron around your coop so the dogs can't dig their way in

 

[McChooky]

I'm voting cat too, something strong enough to break those welds. Forget about raccoons or ferrets. Also the burying behavior is more cat like. Also be aware, once the coop is compromised, ever present raccoons will take advantage and often get blamed for original damage done by other animals. I set up cameras and found dogs are almost daily on my property. Out of 14 dogs, only one was doing heavy damage to my coops. (a pit bull) but afterwards all kinds of animals were taking advantage of the senseless slaughter. At the time it happened I was convinced it was a bobcat because I had bent corrugated metal panels that took great strength. Later I got videos of a pit bull pulling a locked door open from the bottom that was about to break the whole door. We had to add a cross bar. Now that the bobcat or whatever has gotten in your coop, now is the time to start building a fortress as it will come back. It took lots of reinforcement and heartbreaking loss to make my coop pit bull proof a bob cat is probably stronger. That pit bull comes at least once a week to test the coop and always when no one's home or the middle of the night. Get a camera that alerts your phone. I can see the pit bull and his buddy pit bull that comes but just barks at the coop melt into the wood as I drive into the driveway.

They sell a product called JB Weld you can use to fix that broken weld . You should be able to find it on Amazon(comes in a tube)