I would appreciate any tips, as well as sources of information on them. The auracauna is, from what I've been able to discover, a usually black south american bird that is rumpless, with a pea comb, and has tufts, not beards or muffs. The gene, from what I understand, that causes the blue eggs also causes these other features special to the araucana. Because the south american araucana did not thrive here, but the blue egg was desired, it was mixed with other domestic chickens here. These birds can be just about any color, depending on what it was originaly mixed with.
Some birds have the tufts, which are really unique, but more often have muffs or beards or both.
Because the blue egg laying gene is dominate, alot of these birds do lay a very nice blue to green to pinkish egg. Americanas are not considered pure bred so cannot be shown with pure breeds in shows. These birds are also called Easter egg chickens. They are usually nice birds and a flock of these alone makes a colorful sight in your yard. You just have to have the correct color.