Easter Eggers are wonderful birds. I had a great flock that I enjoyed very much. They all layed beautiful eggs and were very pretty. They came in a variety of patterns and colors.
This is the description I had in my breed catalog:
The Easter Egger is a chicken well known for its ability to lay blue and green eggs. None of the birds in this flock lay brown or pinkish eggs. I have selected the majority of the birds to have muffs and beards, but occasionally a non-bearded or muffed bird will make it to the breeding pen because of an interesting color. Egg color can range from a light pastel blue, sea foam green, olive green, and finally to a deep army green. Some of the green eggs will have violet or chocolate colored speckles on them. The darkest green eggs are produced by Cuckoo Marans x Easter Egger Crosses. The color of the birds can be as much of a surprise as their eggs. Adults can be found in solid colors like buff, white, black, blue, splash, red, and brown, or in broken colors like cuckoo, wheaten, silver duckwing, partridge, penciled, columbian, and any other variation you can imagine. The hens lay very well and the roosters are very friendly. Extra Ameraucanas are on this yard, so occasionally you may receive a pure blue, black, splash, or white Ameraucana chick.
Ameraucanas on the other hand are a pure breed recognized by the APA in 8 different colors in both large fowl and bantam. Hatcheries don't carry Ameraucanas or at least not any that I know of. However they sell more birds under the label Ameraucana/Araucana.
Edited to Add: Oopps. Speckledhen beat me to the punch.