What has thus far been presented above on the first discovery of the American wild turkeys, their natural history in the New World, their introduction into Spain, England, France, and elsewhere, is practically all we have on this part of our subject up to date. What I have given is from the very best ornithological and other authorities. Domesticated turkeys are now found in nearly all parts of the world, while in only a very few instances has any record been kept of the different times of their introduction. With the view of accumulating such data, one would have to search the histories of all the countries of all the civilized and semi-civilized peoples of the world, which would be the labor of almost a man's entire lifetime, and in only too many instances his search would be in vain, for the several records of the times of introducing these birds were not made.

Apart from the description of the wild turkeys, there is still a very large literature devoted to the domesticated forms of turkeys as they occur in this country and abroad, as well as descriptions of their eggs. I have gone over a large part of this literature, but shall be able to use only a small, though nevertheless essential, part of it here. This I shall complete with an account of turkey eggs, which will be presented quite apart from anything to do with their nests, nesting habits, and much else which will be fully treated in other chapters of this book. In some works we meet with the literature of all these subjects together, others have only a part, while still others are confined to one thing, as the eggs.[32] Darwin in his works paid considerable attention to the wild and tame turkeys. He states that "Professor Baird believes (as quoted in Tegetmeier's 'Poultry Book,' 1866, p. 269) that our turkeys are descended from a West Indian species, now extinct. But besides the improbability of a bird having long ago become extinct in these large and luxuriant islands, it appears, as we shall presently see, that the turkey degenerates in India, and this fact indicates that this was not aboriginally an inhabitant of the lowlands of the tropics.

"F. Michaux," he further points out, "suspected in 1802 that the common domestic turkey was not descended from the United States species alone, but was likewise from a southern form, and he went so far as to believe that English and French turkeys differed from having different proportions of the blood of the two parent-forms.[33]

"English turkeys are smaller than either wild form. They have not varied in any great degree; but there are some breeds which can be distinguished—as Norfolks, Suffolks, Whites, and Copper-Coloured (or Cambridge), all of which, if precluded from crossing with other breeds, propagate their kind truly. Of these kinds, the most distinct is the small, hardy, dull-black Norfolk turkey, of which the chickens are black, with occasionally white patches about the head. The other breeds scarcely differ except in colour, and their chickens are generally mottled all over with brownish-grey.[34]

"In Holland there was formerly, according to Temminick, a beautiful buff-yellow breed, furnished with an ample white topknot. Mr. Wilmot has described a white turkey-cock with a crest formed of 'feathers about four inches long, with bare quills, and a tuft of soft down growing at the end.'[35] Many of the young birds whilst young inherited this kind of crest, but afterwards it either fell off or was pecked out by the other birds. This is an interesting case, as with care a new breed might probably have been formed; and a topknot of this nature would have been, to a certain extent, analogous to that borne by the males in several allied genera, such as Euplocomus, Lophophorus, and Pavo."[36]

Darwin has further pointed out that "The tuft of hair on the breast of the wild turkey-cock cannot be of any use, and it is doubtful whether it can be ornamental in the eyes of the female birds; indeed, had the tuft appeared under domestication, it would have been called a monstrosity.

"The naked skin on the head of a vulture is generally considered as a direct adaptation for wallowing in putridity; and so it may be, or it may possibly be due to the direct action of putrid matter; but we should be very cautious in drawing any such inference, when we see that the skin on the head of the clean-feeding male turkey is likewise naked."[37]