Ameraucas looking to sell 3 about 3 mouths old. amerauas $20 Each or all 3 $50. Blue Ameraucana. They have been raised on organic food. Weight Male: Standard: 5.5-6.5 lb  Female: Standard: 4.5-5.5 lb  Egg color blue Blue in various shades History The Ameraucana was developed in the United States in the 1970s from Araucana chickens brought from Chile. It was bred to retain the unusual blue-egg gene of the Araucana, but eliminate the tufted and rumpless lethal alleles of the parent breed. The Ameraucana is recognized in the United States as a separate breed from the Araucana. In some other countries, including Australia and the United Kingdom, both the tailed and rumpless variants of the Araucana are considered a single breed.