The BRAZILIAN EAGLES (_Morphnus_), also inhabitants of the woods of Brazil, form a race of remarkable birds, concerning whose proper position there has been great variety of opinion, seeing that they combine the size, strength, and noble appearance of an Eagle with the shape of the Sparrow Hawk. All the members of this group possess stout bodies and large heads; their wings are short, their tails broad and long; the tarsus is at least twice as long as the middle toe, and but slightly covered with feathers below the heel, the other parts being protected with horny plates; the toes are powerful, though short, and armed with strong, sharp talons; the beak is long, shallow, and comparatively weak; the upper mandible terminates in an abrupt hook, and its edges bulge slightly outwards. THE CRESTED BRAZILIAN EAGLE. The CRESTED BRAZILIAN EAGLE (_Morphnus Guianensis_) is the species with which we are most familiar. In length this bird measures twenty-five, in breadth fifty-seven inches; the wing from fifteen to sixteen, and the tail from eleven to twelve inches. The long, streaming, and somewhat owl-like plumage is prolonged at the back of the neck into a crest six inches long, and varies considerably according to the age of the specimen. We learn from the Prince von Wied that the head, throat, breast, belly, rump, and legs are of spotless white, only varied here and there by a slight yellow shade; the back, shoulders, and wing-covers are of a pale greyish red, the feathers being spotted and mottled with red; the quills and tail are blackish brown, edged with a narrow irregular greyish-red line. Pelzehn considers that the plumage above described belongs to the young, and tells us that as they increase in age their feathers become darker. According to this authority, the old birds are dark brown upon the head and throat, and greenish black upon the whole of the upper part of the body and breast; the upper tail-covers being streaked and tipped with white. We must leave it to future naturalists to decide which of these descriptions is correct.