This Nicobar Pigeon was photographed in the aviary at the Fresno Chaffee Zoo in California.  Its native home is on the island of Nicobar off the coast of India.  Its coloring ranges from deep blue to deep purple and actually has a small white tail feather, but that didn't show up well on this stone.

See gemstone BEFORE photo -  thumbnail photo above.

Nicobar Pigeon 5x7