Here are some chicken resources I recommend.
Enrichment
Pawsitive Thinking
Get a free 26 page chicken enrichment guide!
Also check out their other unique and inspiring animal products.
My ongoing chicken enrichment webinar
Health resources
The British Hen Welfare Trust is a fantastic charity, originally set up to educate people about laying hen welfare. It plays an important role in rescue and rehoming of chickens. It also actively campaigns for better welfare standards, and works alongside top avian vets to provide up to date health care advice.
The Chicken Vet company was set up by a group of vets with a special interest in poultry medicine. This website provides a service in form of their advice hub and symptom checker. This is a great source of help and information.
The Little Feed Company have a wonderful range of products for chickens and other animals.
They are passionate about the environment and about creating natural products with a low envionmental impact.