Shiny Black Blotches on Comb

Hi!  Several weeks ago, someone dumped two Dutch banties in our garden and we put them into our broody ark/run.  The cockerel just developed a big black shiny blotch on his comb and the tips of his comb are blue now.  I have their run partially covered by a duvet to protect them from the wind, but they insist on being out in the unprotected bit during the day unless it is raining.  The blotch is not raised.  I sure hope he doesn't have frost bite!  We haven't had any weather below freezing lately.

Tonic with vitamin B.  Will do!  Thank you!   

Wet a kitchen towel with warm water and rub the blotch gently. It may be dry blood - our cockerels have been through hen-pecking when new hens were introduced.

Koperdrake, thank you for telling me about the pecking - his wife has a bit of a go at him every day.  That might explain it! 

   She's having none of that!  She challenges him every time the poor lad makes eye contact.  He still clucks to her to come for food though and always lets her eat first while he stands over her to protect her.  Sweet, really.  I think they may be a little bored.