A big slim Jim
The comb is removed from fighting rooster so the opposing fighting cock cannot get the comb in its beak in order to hold the head and kick it with it's spurs. The comb may be trimmed if it gets frostbitten in the winter. This helps prevent infection and does not hurt the rooster since the tissue is already dead. Since fighting chickens is illegal, the is no reason to cut the comb off any chicken. The comb of a chicken helps regulate the body temperature of the bird, without the comb the chicken will suffer in the heat of the summer. Removing the comb also exposes the bird to infection and unnecessary pain and suffering.
A Leghorn rooster is a large white bird with a red comb.
I can only assume you mean the comb of your chicken is turning black and that would either be a trauma injury or the result of frostbite. Either way this is not great news but you can use a petroleum jelly like Vaseline on the comb to keep it moisturized. Comb and wattle injuries are not uncommon and unless the bird gets blood poisoning they can survive the loss.
Black comb and vomiting in a chicken can be signs of a serious infection or illness like avian influenza, fowl cholera, or Newcastle disease. It is important to isolate the sick chicken, provide fresh water, and contact a veterinarian with experience in poultry as soon as possible for proper diagnosis and treatment. Biosecurity measures should also be taken to prevent the spread of the disease to other birds in the flock.
You are describing a Barred or Sliver penciled Wyandotte Large American breed with a rose comb (looks like a double) and clean leg. Standard will reach 6.5 pounds and bantams weigh out to about 2.5 Lbs. They are calm and industrious usually quite docile. Medium egg producers with large, light to rich brown eggs. See link for pictures and information.
"of chicken" is the prepositional phrase in the sentence "Each type of chicken has a different comb".
Chickens develop white spots on the combs from a disease called Favus. This can be cured from athletes feet creme.
The Comb
If they have a comb
The preposition is the word "of." The phrase "of chicken" modifies the noun "type."
Chickens are female farm bird. The male version of a chicken is a rooster. Roosters are very protective of the chickens. Chickens usually eat bread and seeds. They can be all different colors: black, white, yellow-orange, brown, redish, black-white spots. They also come in all shapes and sizes.
A comb can alert you to a chicken's general circulation and condition. A pale pink, shrunken comb may be due to anemia, might infestation, or the bird is in moult or reacting to weather conditions. Normally in heated situations, the comb will be bright read as the bird is trying to get rid of as much body heat as possible.In heat stress, the bird cannot get rid of the heat fast enough.The bird will show the following signs/symptoms:panting or have labored breathing,pale comb and/or wattles,spreading wings away from body,diarrhea,lethargy,extreme stress: limpness, unresponsive and seizures.