I got lost again a bit ago on the internet and ran across this interesting article about breeding and egg production. I noticed here at BYC a few people have been saying that their hen's started crowing, and this article explains what happened.
https://nadis.org.uk/disease-a-z/po...d-poultry/part-6-breeding-and-egg-production/
https://nadis.org.uk/disease-a-z/po...d-poultry/part-6-breeding-and-egg-production/