Hello Sharon and welcome to BYC, You found an Amazing Poultry Community to be a part of with many great knowledgeable members, who are more then willing to jump in and help you along your journey with any questions you may have.
Hi Sharon, welcome to BYC. I am so sorry for your loss.
I didn't realize that the EGLU runs were so poorly made. 1Ă—3 openings are too large for safety. If you can find 1/2" hardware cloth, you can reinforce your run with that.
Again, my condolences for the loss of your chick.
Hi Sharon, sorry about your chick. @sourland is spot on, once a predator finds an easy meal, he will return. Reinforcing your run with hardware cloth will help protect your other birds.