We have also used a nearby livestock auction, and I do stick around to talk about the birds I've brought. I also put notes on each cage describing them; breed, age, sex, if vacciated against Marek's, and if polite cockerels, definitely mention that!
Nasty cockerels don't live to make it to the...
The hard part of chicken keeping, so sorry. There are always too many cockerels, and few places for them.
You can keep trying to find him a home, or as an alternative, a local raptor rescue can take him for feeding their birds.
I have managed to place many cockerels, and am sure that many do...