The following terms are frequently used in the community of rooster (gamefowl) breeders.

Environmental blemish - A gamefowl which has one or more imperfections, preventing it from being of "show" quality. Environmental blemish examples:

• Missing toenails


• Broken toenails


• Damaged feathers


• Damaged beak

Brood cock – a rooster 2 or more years old used strictly for breeding

Brood stag – a rooster under 2 years old used strictly for breeding.

Brood hen – a hen 2 or more years old used strictly for breeding.

Brood pullet – a hen under 2 years old used strictly for breeding.

Brood pen – a pen used to hold and maintain brood fowl for purposes of breeding.

Bull stag – a rooster between 1 and 2 years old.

Cock – a rooster 2 years or older.

Cocker – a promoter, handler, breeder,  or fan of gamefowl.

Fowl – checks collectively, it refers to both sexes, & sometimes means gamefowl.

Gamefowl – fowls used for show and breeding purposes.

Jungle fowl – the original fowl from which all chickens derive.

Moulting – the time when fowl drop their feathers and grow new ones in their place.

Pullet – a hen under 2 years old.

Stag – a rooster under 1 year old.