My 29 week old hen has stopped laying an started trying to crow..

[2 chiks n a roo]

That's probably the trigger. The older hen dying.

But also the season is also changing now, & egg production is gonna drop abit.

Update on Mira..
As soon as I wormed them at the beginning of September, she stopped crowing and started laying.
She's missed 2 days since. She still crows sometimes, then pops an egg out. I think now she does it, cos she can