chicken not laying

[Zwillingsmama]

I have 7 chicken, 2 are too young to lay, but my other 5 are 2.5 years old.
BR still laying 4-5 eggs a week
SS stopped laying 1 week ago
EE is molting now, but stopped laying mid August
BCM finished molting about 6 weeks ago, stopped laying beginning of August
OE stopped laying end of August, crash molted, layed for 1 week mid September and stopped again
I am feeding an all flock feed with oyster shells on the side, greens from the garden and meal worm treats once in a while
Is that normal? I feel like I am feeding a bunch of free loaders

 

[ChickenCanoe]

Normal.
2.5 year old birds should take a break now that it is this long after summer solstice.
You are at about 10 hours and 45 minutes of day length and losing about 2.5 minutes a day now. That's the signal to the hen's pineal gland to shut down production.
They'll start up again after winter solstice.