Can you recommend an organsation that is an authority on chickens?
UK:
The British Hen Welfare Trust (BHWT), founded in 2005 by Jane Howorth, is a UK charity dedicated to improving the lives of commercial laying hens. They rescue hens from egg farms at the end of their productive lives and rehome them as pets, having rehomed over 800,000 to date. The BHWT also educates the public about hen welfare, and promotes the consumption of British free-range eggs. Here is a link to their website - https://www.bhwt.org.uk/
US:
Whilst this is not a comprehensive list it does acknowledge some of the particularly prevalent content providers our US clients engage with: