The Araucana and AMericauna breeds are a bit different but they both produce colored eggs. You pictured the Americauna variety. The Araucana is the original stock , as Set said, named after a SOuth AMerican culture. The Araucana is a bit stockier and the hens have a distinguishing tuft of feathers on each side of their beak giving them a quizzical look. They also have closer set eyes and are able to see binocularly like meatatarian birds. They are always looking at you strait on and that can be disconcerting to folks unfamiliar with chickens. They are like little plump raptors. They are also mild mannered and dont get into these "Chicken panic attacks" that afflict all other breeds. Its common for hen house kept chickens to go into violent panic attacks whenever anyone walks into the coop. Imagine an industrial egg production facility with 50000 chickens in these individual coops. SOmeone comes in and the chickens go nuts so violently that when all the panic ends, seeal hundred chickens can be dead just from banging against their cages.
Araucanas arent the greatest egg producer (Ill get maybe 4 eggs a week from the hens. BUT, their tempereament, the colored eggs, their acceptance and connecting with people (We get a lot of people at the farm), all makes them great birds to have for small operations and house flocks. We also have 4 guinea hens and a guinea cock that take care of all insect pests in the barn and the garden.
Guineas are flighty but very protective of everything as soon as they become imprinted with the site and they set up their territory and all their charges.