These Eagles are common in Germany, Greece, and South Italy, and more numerous than any others in Spain and Algiers, where they frequent bare mountains; they are also met with in north-western Africa and India, always resorting to the hilly districts of the latter country. These birds do not migrate, but wander at large in considerable flocks, except during the breeding season, when they are extremely unsocial, prudently permitting none of their companions to approach the nest. In disposition the Hawk Eagle has much in common with the group whose name it bears, equalling the Gos-Hawk in courage and hardihood, but far exceeding it in bodily powers. When upon the wing its movements will bear comparison with those of the Falcon, but when perched its attitude is much less imposing. The eye of this species is peculiarly brilliant and fiery in its glance, clearly indicating the disposition of its owner, whose fierce boldness often leads it to contend with the largest and most formidable of its race. Some writers tell us that the Hawk Eagle confines its attacks to water birds, but this is not the case; in Spain it is numbered amongst the most terrible invaders of the poultry-yard, whence it will carry off a good fat hen under the very eyes of its owner. Jerdon mentions having seen it in India seize upon and bring down Peacocks. The eyrie, which is usually placed in holes of rocks, is but rarely met with; one found by Krüper in Greece contained two eggs, the walls were formed of sticks, and the interior was lined with down. The eggs differed from each other, both in colour and markings, one being of a dirty white without spots, and the other pure white, and distinctly speckled. The nest to which we allude must have been an uncommonly warm cradle for the nestlings, for it was so placed as to be exposed to the full force of the sun's rays. * * * * * The HOODED EAGLES (_Spizaëtos_) are slender in form, with short wings, long tails, and high, powerful feet, one distinguishing character being the possession of a more or less developed tuft upon the back of the head. THE MARTIAL HOODED EAGLE.