Araucana
Other Names:
Gallina Mapuche, South American Rumpless
Origin:
South America
Egg Color:
Blue green
Egg Size:
Medium
Avg # eggs:
200/yr
Climate:
Cold
Comb:
Pea
Standard Cock Size:
2.70 kg
Standard Hen Size:
2.30 kg
Bantam Cock Size:
0.74 kg
Bantam Hen Size:
0.68 kg

Araucana

The American Araucana chicken produces blue eggshells, which is a unique trait of this breed, which is an autosomal dominant inheritance trait. If the Araucana is cross bred with any other breed of chicken, its offspring will lay greenish-blue colored eggs. On occasion they can produce alternate, rare egg colors such as pink or yellow colored eggs. Araucanas unfortunately carry a "lethal gene", so that breeding two tufted birds together results in 50% with tufts, 25% of the brood dying in the shell, and 25% having no tufts.

The breed has no tail (referred to as being rumpless) and so-called ear tufts, which are feather-covered epidermal appendages that project from the side of the chicken’s head. The tufts are associated with an irregular external ear opening and a reduced external auditory canal.

References

  1. http://omia.angis.org.au/OMIA000142/9031/