For chickens, you would be right. And you would be right for turkeys in some countries, too.Sorry, I view them kind of like dog breeds. They are all the same species, but each “breed” has its own unique characteristics and color varieties.
But in the USA, the American Poultry Association is weird in how they list things.
https://amerpoultryassn.com/accepted-breeds-varieties/
They sort all the poultry into different "types," then "classes," then "breeds," then "varieties."
But they are inconsistent from one species to another.
Turkeys are type Turkey, class Turkey, breed Turkey, and all the differences are listed as varieties.
Meanwhile, type "waterfowl" contains two species (ducks and geese).
But chickens (all one species) are divided into two types (bantam and large fowl.)
