Dora'smom :
Can you just call them and ask them? Ask them if she was part of a breeding project, as you have mentioned, and just did not conform as well as the others. What have you got to lose?
I don't know that I would be able to confront them
. Besides, I just cannot see them saying, "yeah we sold you a broody, non-egg laying old hen at twice the price" if that is what happened. Not to say that they are like that, in fact, they seemed nice. I just cannot think of a reason they would get rid of an older hen unless it was negative.
When I got her I did not get a good long look at her and did not notice how developed her face was. I have had chickens before, but always older hens from laying farms, so I am not sure what they look like at various ages, but did not think the "red parts" on her face would be so developed at 4-5 months old. After searching the threads here for pics of 4-5 month old welsummer pullets, I did see one and she looked younger than mine. I just thought I would post a pic of her and see what you all thought.
I got her to be a friend for my 4 month old ee, though the welsummer was boss 10 minutes after being here, they do sleep together on the roost. I do plan on keeping her unless she turns out to be an egg eater.