So this website has a specific forum for it here.
https://www.backyardchickens.com/forums/animals-in-need-of-free-re-homing.16182/
I am guessing that this will work better if you are in a populated area, because it will be more likely that other BYC members will also live there.
I have used...
It's a cockerel. Long curling tail feathers + big red comb + green/black feathers on the wings. I'm pretty sure purebred barred rocks can't have those green/black feathers at all. Maybe others can chime in if any other breed with a cuckoo pattern can have those feathers, otherwise it is in fact...
With BR, the females have darker feathers and legs. Here the feathers say female, but the legs don't. I feel like I need to know the breed 100% to judge the comb, too. Where did they come from?