CAITHSOMEAE UR > | {MW Ry SKETCH OF THE gc | ft - OF , | RAPTORIAL BIRDS IN THE porien NORWICH MUSEUM. BY | |oHN i‘ ENRY G URNEY. a ae d : . ARI PRICE SIXPENCE LONDON: JARROLD AND SONS, 3, PATERNOSTER BUILDINGS. K a ‘i or Lae = wo, f ao £ em, THE mer PORTAL Bl ele IN THE NORWICH -MUSEUM, Aig OF THE COLLECTION OF Re PrORIAL BIRDS Horwich atluseum, BY fon HEN ReY ‘CU RN ee: ILA 4 Qf LONDON : JARROLD & SONS, 3, PATERNOSTER BUILDINGS. MACE PORTAL: -BERDS. ee eeeeEOOOOEOSe HE order of Birds called “ Raptores,” or Birds of Prey, includes most of those species which feed on the flesh of other birds, and of quadrupeds, as well as some which subsist chiefly on reptiles, fishes, and the larger insects. Many of the birds of this important order, especially those which are called the diurnal birds of prey, are provided with wings of considerable power, enabling them both to soar aloft when scanning the landscape in quest of their prey, and also to descend upon it, when perceived by their acute vision, with a swoop of extraordinary rapidity and force; they are also provided with strong pre- hensile toes, armed with curved and sharp claws or talons, enabling them to seize and hold their prey with an effectual grasp; and their bills are armed with a sharp hook, terminating the upper jaw or mandible, and serying as a weapon for tearing in pieces the prey /Awhich is thus secured by the clutch / 6 . RAPTORIAL BIRDS of their talons, and which is usually subdivided in this manner before it is swallowed. Most birds of prey, except the Owls, seek their food by day, and we have first to consider these diurnal Raptores, and subse- quently to examine the nocturnal Raptores or Owls. In the arrangement which has been adopted in the Norwich Museum, the series of diurnal birds of prey commences with the African Secretary Bird, the only species of the genus Serpentarius, which being one of the most abnormal birds ofthe group, seems naturally to occupy a post upon its outskirts. The Secretary Bird (so-called because the long feathers at the back of its head have been thought to bear a fanciful resemblance to a pen fixed behind the ear of an amanuensis,) is the longest legged of all the birds of prey ; and unlike most birds of the Raptorial order, is much addicted to running, which it seems to prefer to having recourse to flight; it in this manner courses over the sandy deserts of tropical and South- ern Africa, chiefly feeding on the reptiles which are peculiar to those scorching sands, including many poisonous snakes, which the Secretary attacks without hesitation, and generally with impunity, stunning its prey with powerful blows of its foot, while it spreads its wing before it as a shield to defend its body from the serpent’s bite. Allied to the Secretary, but of smaller dimensions, is another African bird, (of which a second species inhabits the Island of Madagascar,) called the Gymno- IN THE NORWICH MUSEUM. 7 gene (of the genus Polpboroides), which is very remark- able as being the only bird known in which the upper tarsal joint (that is, the joint in the middle of the leg,) can to a certain extent be bent forwards as well as backwards—a power of which this bird avails itself when in searching for the frogs on which it frequently feeds, it inserts its foot into the fissures in the ground which are caused by the heat of an African sun, and in which the frogs of South Africa usually take refuge when the smaller pools of water are dried up. Our next group is an American one, consisting of the birds called Caracaras, or Carrion-eating Hawks, and comprising the genera Polyborus, Senex, Phalco- benus, Milvago, and Lbycter. The birds of the three first of these genera feed partly on carrion, and partly on insects, and small reptiles; but those of the genus /dycter appear to subsist upon insects almost exclusively. Perhaps the most remarkable bird of this group is the species called Senex australis, which inhabits the Falkland Islands, and is noted for its singular propensity for carrying off any small object which may excite its curiosity. One of these birds was seen to purloin a pocket mariner’s compass, and another actually pounced upon and carried off a sailor’s glazed hat, which had been - accidentally left on the ground at a spot frequented by these birds. Between the Caracaras and the true Vultures is introduced the genus Gy/ofierax, consisting of a tr / 8 RAPTORIAL BIRDS single species, a native of tropical Africa, which is usually called the Angola Vulture, but which 1s scarcely entitled to that designation, as it differs from the Vul- tures, properly so called, in having its head clothed with feathers, and also in its habits, for, instead of feeding like the Vultures on carrion, it frequents the sea coasts, and lives like the Sea-Eagles by the capture of fish, though it varies its diet by also preying upon crabs. The true Vultures are divided into the following genera — lVeophron, Coragyps, Cathartes, Gryphus, Sarcoramphus, Vultur, and Gyps. The genus /Veophron consists of three species, of which one is found only in tropical and Southern Africa, another occurs in India, and the third, which bears the name of the Egyptian Vulture, is distributed throughout Africa, Southern Europe, and South-west- ern Asia. The predilection of all the true Vultures, for feeding on unclean offal, is most strongly developed in all the species of the genus (Veophron, which, on that account, are most useful scavengers in those hot countries which they inhabit. The Egyptian Vulture is interesting as having been satisfactorily identified, through the medium of its modern Arabic name of Rachama, with the unclean bird mentioned in the English version of the Penta- teuch, under the title of ‘‘ Gier—Eagle.” The four succeeding genera contain the American IN THE NORWICH MUSEUM. 9 Vultures, three of which (one belonging to the genus Coragyps, and two to the genus Cathartes,) perform services as scavengers in many tropical cities of America, similar to those for which the African towns are indebted to the Vultures of the genus /Veophron. Nearly allied to these smaller scavengers are the two great American Vultures, the Cathartes cali/ornia- nus, or Californian Vulture of the Rocky Mountains, and the Gryphus condor, or Condor Vulture of the Andes, the latter being the largest bird of prey known. Both these species are remarkable for the extra- ordinary altitudes at which they are sometimes ob- served to soar, and from whence they can discern their distant prey. The Condor attacks with equal avidity the newly dropped and weakly calf, or the abandoned carcase of any animal which may have accidentally perished in the gorges of the Andes, or on the adjacent plains. The Californian Vulture is equally on the watch for such carcases as may occur in the territory over which its range extends, and both species frequently descend to the shores of the Pacific Ocean to prey upon stranded whales, or upon seals which have been abandoned, after the sealer has secured the fur or the oil for the sake of which these animals are constantly destroyed on the western coasts of the American continent. The remaining Vulture of the New World is that beautifully-coloured species (though the vivid hues of its 1 fe) RAPTORIAL BIRDS head and neck fade grievously in preserved specimens) which bears the name of the King Vulture, an appella- tion given to it because the small black Vultures, which are its fellow denizens of the tropical parts of America, always abstain from attacking a carcase on which the King Vulture has descended, until the latter has satiated his royal appetite and with slowly flapping pinions, has winged his way to the dead limb of some lofty tree, where, with his crimson head and purple neck nestled down between the cream-coloured feathers of his wings and shoulders, he will patiently sit till the return of hunger recalls him from the memories of his last feast to a quest for the repast which shall succeed it. The two remaining genera, Vu/tur and Gyps, con- tain all the larger true Vultures of the Old World, some of which approach very closely in size to the American Condor. They are widely spread over the continent of Africa, and over the southern countries of Europe and Asia; and, like the rest of this tribe, subsist chiefly on abandoned carcases of animals, which have accidentally died, or have fallen victims to the pursuit of either hunters or wild beasts. One of these species, the Fulvous Griffon Vulture, (gyps fud- vus) was frequently sculptured by the ancient Egyp- tians on the entablatures of their temples, and is believed to have been held sacred by their priests, to one of their fabled deities, Maut, he Goddess of Maternity. IN THE NORWICH MUSEUM. IJ The Vultures are followed by the Leemmergeyers, of which there are two species differing very slightly from each other, and forming together the genus Gypaétus, a name which signifies Vulture-Eagle, and thus indicates the natural position of the Lammer- geyers, which, both as regards their form and habits, are intermediate between the Vultures and the typical Eagles. The Laemmergeyers inhabit the mountainous parts of Africa, and of many warm and temperate countries of Europe and Asia, and are much more in the habit of attacking living prey than are the true Vultures. One of the animals which they frequently devour is the tortoise, whose strong shell they contrive to shatter by carrying the reptile into the air and then dropping it on a rock or large stone; and it is re- markable that the ancient Greek tragedian, A‘schylus, is recorded to have lost his life by a tortoise having been thus dropped upon his bald head whilst he was sleeping in the open air in the Island of Sicily, a locality inhabited till recently by Lazmmergeyers, which still abound on the opposite shore of the Mediter- ranean, amongst the mountains of Northern Africa. From the genus Gyfaé/us we pass to that well- known and formidable group, the Eagles; commen- cing with those genera in which, as in Gyfaétus, the lower portion of the leg, called the tarsus, is clothed with feathers. The first of these, the genus Uvoaétus, contains but 12 RAPTORIAL BIRDS one species, the large wedge-tailed Eagle of Australia, which occupies this place because the conformation of its head, neck, and tail, appear to offer some special points of affinity to the genus Gyfaéetus, which it im- mediately succeeds. The next genus, Agzz/a, contains all the most typi- cal Eagles, of which the Golden Eagle is the best known as being the only feathered-legged Eagle, which is a native of the British Islands. This magnificent bird, some two hundred years ago, nested amongst the rocks of Derbyshire, but it now only occurs in England as an occasional straggler, though a few pairs still nest in the Highlands of Scot- land, on estates where they are not allowed to be destroyed. The greater number of the Scotch Goiden Eagles have, however, been exterminated in conse- quence of their destroying lambs, fawns, grouse, and mountain hares, which appear to constitute their chief food. The Golden Eagle is found in Europe, North Africa, Asia, and North America, and is the only species of the genus which occurs in America, al- though the other species, to which our space will not allow us to refer in detail, have a wide distribution over the warm and temperate countries of the Old World. The genus (Veopus, which follows Aguwz/a, is limited to two Oriental species, of which the best known is that called JVeopus malayensis, which has frequently come under the notice of Indian Ornithologists as a IN THE NORWICH MUSEUM. 13 voracious devourer of the eggs of other birds, especially those of the Indian Pheasants. The extraordinarily long and sharp claws of this species are particularly worthy of observation. The second and less typical species of this genus, /Veofus gurneyi, (which is a native of some of the islands in the Indian Oceéan,) is remarkable for its great rarity, the Leyden and Nor- wich Museums being (it is believed) the only public collections which contain this fine bird. The next group consists of those genera which are called Hawk-Eagles, because their wings are shorter, and their tails more developed than is the case with the typical Eagles, in both of which respects they re- semble the true Hawks. Of these Hawk-Eagles the genera JVisaétus, Limnaétus, Lophaéttus, Spizastur, Pter- nura,and Spizaétus, have the legs clothed with feathers as in the typical Eagles; whilst the other genera of the group, Zhrasaétus and Morphnus, have the tarsi bare of feathers and covered with scales, in which they resemble all the remaining non-typical members of the Aquiline family. The first of these genera, LVisaétus, consists of three species, two of which are limited to Southern and Tropical Africa, the other, called Bonelli’s Eagle, being spread over Southern Europe and Asia, and Northern Africa. All three species are comprised in the collection of the Norwich Museum. The genus Lzmnaétus contains all the remaining Hawk-Eagles of the Asiatic Continent, and of the 14 RAPTORIAL BIRDS Islands of the Indian Ocean; and our Museum is fortunate in also possessing all the known species of this genus, including some of considerable rarity—in the case of one of these, Zzmmnaétus borneonensis, the two specimens which we possess are the originals of the fine plate of this species in its adult and immature dress, given by Mr. Gould in his folio work on the Birds of Asia. The genera Sfrzastur and Pternura are limited to the tropical portions of the American Continent. One species of the genus /%ernura, which we possess, both in its immature and adult dress, (the Pternura zstdora of New Grenada,) is so rare, that neither the British Museum nor the celebrated collection at Ley- den contain an example of it. The two other species ef the genus (P. ornatus and P. tyrannus) which from their being less rare, are better known to travellers, were both observed by Prince Maximilian of Wied, during his explorations of the Brazilian forests, to be much annoyed by Toucans, which mobbed them as small birds in England sometimes mob a Kestrel or an Owl.