The notch in the “eyes” of the Peacock’s train-feathers puzzled Darwin till he met with the ocelli of the Peacock-pheasant. The left-hand lower figure represents the ocellus of the Argus, the right-hand that of the Peacock-pheasant. [Face page 98.] It is probable that the erroneous interpretation of the display of the Peacock is due to the more lasting and easily remembered impression of what obtains in the case of the Turkey under like emotions. This bird in his exultant moods, most people have seen. Herein the tail plays a very important part, being raised and spread to form a great half-circle, while at the same time the back-feathers, or at least those of the lower back, are set on end, and the wings are trailed on the ground. The effect is heightened by the suffusion of blood to the bare skin of the head and neck, and the sudden inflation of a long, pendent, fleshy wattle from the forehead, which hangs down over the beak. Great display is made with this, and an additional importance is added by the spasmodic vocal efforts which can best be described by the “gobble” rapidly repeated, as the bird struts about with mincing gait, turning the wheel-like tail now to one side now to the other. But the Turkey possesses yet another “ornament” which commonly escapes notice. This is the curious tuft of long, black, coarse, bristles which projects forward in front of the breast. It is difficult to discern what part this tuft may play, since it is quite inconspicuous. It seems as though this must be added to the number of structural characters which appear to survive without any apparent use.