Here is a thread I started:
https://www.backyardchickens.com/th...-under-construction-updated-2-9-2021.1293789/
Lots of info and pictures.
https://www.backyardchickens.com/th...-under-construction-updated-2-9-2021.1293789/
Lots of info and pictures.

Great advice from everyone. Can you take more pictures of it stretched out, and does this area seem abnormally yellow to you?