Hens on strike

I have 2 banties and 6 other full size heritage hens including Rhode I.R. and a 1 year old RIR rooster (very healthy and all free ranging) yet none of my hens gone broody last spring, can anybody advise why? Thanks.

I don't know about your other hens, but RI Reds have been selected for non-broody traits so that they keep laying.

That's right, obviously when the cluckers lose their plumes, they picket. As in, they can't lay any eggs when they're bare