A rooster pecks around a pile of straw manure on the Victorian working farm at Acton Scott, in Shropshire, UK.
Adult chickens have a fleshy crest on their heads called a comb or cockscomb, and hanging flaps of skin either side under their beaks called wattles. Both the adult male and female have wattles and combs, but in most breeds these are more prominent in males. (Wikipedia)
Larger version and full exif available on my website – Rooster at Acton Scott Historic Working Farm