I feel really sorry to hear about your chicken. I have read somewhere that it is a misconception that chickens attract rodents, but they are actually attracted to food and water, not chickens.
Maybe you should consider modifying feeders to prevent beaking-out of feed. Adding divider or chicken...
Keep the area around the chickens' coop tidy. Make sure to cut the grass around your coop is always cut neatly. Throw away empty feed bags.
Repair doors and floors to help restrict access to the coop. Total exclusion might not be practical for larger operations, but backyard chicken keepers...
Hello guys,
This is Karen here all the way from Vancouver. I started with 10 young chickens and everything is going well till now. Glad to be a part of this forum. Looking forward to participating.