Close all the doors. The fencing should be 1/2" hardware cloth. There should be no gaps larger than 1/2" anywhere in the coop.Not sure how predator proof it is or how to test. The "fencing" seems to be buried nicely. I would like to reinforce the fencing. Not sure if I should close the door to the coop at night (the building vs the building and outdoor run).
Nice to have you here! Congrats on the new home and flock!! First rule for security.... forget about chicken wire. Not a deterrent for many predators. DobieLover is right, many of us have learned the hard way
and Welcome to Backyard Chickens.
to have you here with us. Enjoy your time here at BYC!