Great info, thanks.
I recently bought 10 moulting hens, supposedly RIR. It was a mercy case really, as the guy was out of money and out of food for them - and it was freezing cold, poor bedraggled things. These so called RIR's are definitely red sex links of some variety, which isn't really a problem for me, though I would have preferred some heritage breeds. Like I say, they needed help fast and I have the room. One thing I've noticed is that they eat a lot!!! Their little snubbed beaks are never far from the feeder, unlike my original 'farm house specials' who are more content to sunbathe and peck around the yard. The newbies are also laying quite well, too, which surprises me immensely considering how moth eaten they look.