Just updating this thread to say that Pingu has been an absolutely great addition so far. He merged with the hens with no trouble at all and whilst he wasn’t always a true gentleman with them in the beginning, he was quite young and is really getting the hang of everything as he grows up. He is fantastic with people (inc children) and cats too. He likes our rescued ex-battery hens better than all the others and is usually with them.
Pingu’s arrival immediately stopped the bullying of our lowest ranking hen (who was being mounted by the dominant hen!) and he loves to break up arguments. When we reintroduced an injured hen back to the flock after months of separation, he immediately broke up fights and defended her until she settled in again.
If anyone is interested, here are some videos!
Breaking up fight:
https://streamable.com/06ie9h
With cat:
https://streamable.com/ubp64i
On roof:
https://streamable.com/5wijjk
With rescue hens (his favourites):
https://streamable.com/0fypr6