Chickens (Gallus gallus domesticus) are commonly kept poultry to be utilized for the life of the keeper. The pet chicken (hereinafter abbreviated as "chicken" only) is a direct descendant of one of the subspecies of a forest chicken known as red jungle fowl (Gallus gallus) or bangkiwa chicken (bankiva fowl). Cross-breeding intercross chicken has produced hundreds of superior lines or pure lines with various functions; the most common is chicken cut (to cut) and laying hens (to be taken eggs). Ordinary chickens can also be cross-breeded with close relatives, green forest fowl, which produces barren hybrids whose males are known as bekisar chickens.
