has been heard. The bird is a common crow or a raven, and is one of the
most happily executed of the avian sculptures, the nasal feathers, which
are plainly shown, and the general contour of the bill being truly
corvine. It would probably be practically impossible to distinguish a
rude sculpture of a raven from that of a crow, owing to the general
resemblance of the two. The proportions of the head here shown are,
however, those of the crow, and the question of habitat renders it
vastly more likely that the crow was known to the Mound-Builders of
Ohio than that the raven was. What possible suggestion of a toucan is to
be found in this head it is not easy to see.

Turning to page 266 (Fig. 178) another and very different bird is held
up to view as a toucan.

[Illustration: Fig. 16.--Toucan of Squier and Davis.]

Squier and Davis remark of this sculpture:

From the size of its bill, and the circumstance of its having two
toes before and two behind, the bird intended to be represented
would seem to belong to the zygodactylous order--probably the
toucan. The toucan (Ramphastos of Lin.) is found on this continent
only in the tropical countries of South America.

In contradiction to the terms of their description their own figure, as
will be noticed, shows _three_ toes in front and two behind, or a total
of five, which makes the bird an ornithological curiosity, indeed.
However, as the cast in the Smithsonian collection shows three toes in
front and one behind, it is probably safe to assume that the additional
hind toe was the result of mistake on the part of the modern artist, so