Thanks so much for these links!It's also called the "fresh air" or woods style coop. It's supposed to be really beneficial for the health of the birds.
https://www.amazon.com/Fresh-Air-Poultry-Houses-Open-Front-Healthier/dp/097217706X/ref=sr_1_2?crid=2HPP2NQOPIDZ6&keywords=wood's+open+air+coop&qid=1649723289&s=books&sprefix=wood's+open+air+coop,stripbooks,377&sr=1-2&tag=backy-20
The author listed the whole book for free online. https://gnipsel.com/files/chickens/mfaph.pdf