Use Hardware Cloth (Not Chicken Wire)

Solution

Cover all coop openings (windows, vents, gaps) and potentially the entire run with 1/2-inch or 1/4-inch hardware cloth.

Explanation

Chicken wire is designed to keep poultry in, not predators out. Raccoons can reach through or tear it, and smaller predators like weasels can squeeze through. Hardware cloth is a sturdy wire mesh that provides much better protection.

Notes

Secure hardware cloth firmly with screws and washers or heavy-duty staples.