It may have come from the noise a wild turkey makes when it become frightened: it sounds like 'turk - turk – turk.'
The original inhabitants of America called the bird a 'firkee.'
Christopher Columbus, the explorer, took some of the wild turkeys of North America back to Europe. People enjoyed eating the meat. It is possible that traders along the Mediterranean casts , known as Turkes, may have brought some of these birds hence they came to be called 'turkey birds.'
In Spain, the turkey was often referred to as Indian fowl, an allusion which is repeated in the French 'dindon' formed with d'Inde which means 'from India'.
Some say Columbus thought the turkey was part of the peacock family. So he decided to call them 'tuka' which is the word for peacock in Tamil, a language spoken in southern India and Sri Lanka.
The wishbone is a tradition of Thanksgiving. Allow the wishbone to dry. Then, two people grasp each end of the wishbone. After making a silent wish, they pull it away. Whoever gets the joint portion, gets their wish. This is the same at Christmas in the UK.