Araucana

The Araucana or `Gallina Mapuche` is a breed of chicken originating in Chile. It is well known for its blue eggs, which has been a subject of controversy regarding whether or not the breed was developed from birds that arrived pre or post Columbian. The egg colour is reportedly caused by a DNA retrovirus that occurred sometime early in domestica.....
Found on http://en.wikipedia.org/wiki/Araucana

Araucana

The Araucana is an old Chilean breed of hardy chicken domesticated by the Arauca Indians of Chile. The Araucana is bred both with and without a tail and with ear tufts but is most remarkable for laying eggs of varying colours, which has given rise to it being nicknamed the Easter Egg Layer.
Found on http://www.probertencyclopaedia.com/browse/BAA.HTM
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