An egg of this species, in the collection of the Boston Society of Natural History, measures 1.64 inches in length by 1.48 in breadth. In shape it is very nearly spherical, and equally obtuse at either end. The ground-color, though nowhere very distinctly apparent, appears to be of a dull white, strongly tinged with a reddish hue. Distributed over the entire egg are broad deep flashes of a dark mahogany-brown, intermingled with others of a similar color, but lighter in shading. These cover the egg more or less completely, in the greater portion of its surface. This egg was taken near Fort Arbuckle, Indian Territory, May 9, 1861, by J. H. Clark, Esq., and sent to the Smithsonian Institution.
Genus ICTINIA, Vieillot.
- Ictinia, Vieill. 1816. (Type, Falco mississippiensis, Wilson.)
- Nertus, Boie, 1826. (Type, Falco plumbea, Gmelin.)
- Pœcilopteryx, Kaup, 1844. (Same type.)
♂ 1485, R. R. ½
Ictinia mississippiensis.
♂ 1486, R. R. ¼
Ictinia mississippiensis.
