The eyrie of the Sea Eagle is a large structure, from five to seven feet in diameter, and from one and a half to two feet high, formed externally of branches as thick as a man's arm, and lined with twigs; the interior is rendered warm and soft with down plucked from the mother's breast. The brood consists of from two to four eggs, about three inches long; the shell is thick, rough, and coarsely grained, sometimes white without any markings, and occasionally spotted with red or brown. What period of time elapses before the nestlings escape from the egg is not yet known, but it has been ascertained that both parents assist in the work of incubation. The young do not leave the nest until from ten to thirteen weeks after their birth, and even then return to it at night; it is only as autumn approaches that they finally withdraw from parental care. The Sea Eagle is extremely shy, and therefore captured with great difficulty. In Norway small stone huts are erected for this purpose, outside which a piece of flesh, fastened to a string, is laid upon the ground; the other end of the string is held by a man within the hut, who no sooner perceives that his bait is taken, than he draws up the piece of meat, which the bird will not relinquish, and by this means usually succeeds in bringing the huge creature to close quarters, and killing it or making it prisoner. When caged the Sea Eagle soon becomes tame, and learns to distinguish its friends amid a crowd of strangers; indeed, so thoroughly does it accustom itself to its new life, that one with which we were familiar, having escaped from confinement, used to return every day to visit its companions, and was at last re-captured while perched upon their cage. These Eagles have been killed in various counties in England, and are not uncommon in the rocky parts of the western and northern counties of Ireland; they are said to be common in Scotland, and breed in the Hebrides, Orkney, and Shetland. Dr. Heysham, in his catalogue of Cumberland animals, says that they breed occasionally in the neighbourhood of Keswick and Ullswater. THE AFRICAN SCREAMING SEA EAGLE.