Looks like tumors of some kind?? never seen anything like it.. did it just all of sudden get them or did it have growth as a poult..?? its not blackhead that is for sure, blackhead is just the skin color no growth with blackhead..
is it possibly pox??
CHICKEN POX OR FOWL POX (SOREHEAD
Cause: A virus.
Transmission: Mosquitoes are considered an important means of transmission.
Lesions: Wart-like nodules covered with brown scabs on the bare parts of the head, feet and around the vent. Yellowish cheese-like areas may occur on the inside of the mouth.
Treatment: None?
Control: All birds intended for laying purposes should be vaccinated. Birds whose resistance has been weakened through any condition or disease should not be vaccinated until they are healthy.