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> Araucana chickens primarily lay eggs that are blue or blue-green, a color caused by the pigment oocyanin which is deposited throughout the shell during formation. While pure Araucanas are known for this distinct blue hue, the specific shade can vary between birds, ranging from very light blue to green or even khaki.

I raised Araucanas a few decades ago, had a flock of about a dozen hens and a couple of roosters. They lived in the backyard, had their own open coop, and liked to roost in the nearby trees.

The eggs were a little smaller than store-bought. Colors varied blue, blue-green, green, occasionally a tannish blue-green. But the yokes were awesome, robust orange. And the taste was superb.

The roosters were gorgeous plumage, irridescent dark multi-hues. And mean, with huge long shin talons. They'd attack me sometimes, but they only drew blood once or twice that I recall.

Cool birds.