That the eggs laid by birds should offer to some extent characters of utility to systematists is only to be expected, when it is considered that those from the same nest generally bear an extraordinary family likeness to one another, and also that in certain groups the essential peculiarities of the egg-shell are constantly and distinctively characteristic. Thus no one who has ever examined the egg of a duck or of a tinamou would ever be in danger of not referring another tinamou's egg or another duck's, that he might see, to its proper family, and so on with many others.
TINAMOU, the name given in Guiana to a certain bird, as stated in 1741 by P. Barrere (France equinoxiale, p. 138), from whom it was taken and used in a more general sense by Buffon (Hist.
The "Tinamou" of Barrere has been identified with the "Macucagua" described and figured by Marcgrav in 1648, and is the Tinamus major of modern authors.'
On the other hand L'Herminier in 1827 saw features in the Tinamou's sternum that in his judgment linked the bird to the Rallidae.