B.
Doubtful and obscure species which have been described as inhabiting North America.
1. Falco americanus. Gm., Syst. Nat., I. p. 257. (1788.) The Black-cheeked Eagle. Pennant, Arctic Zoology, I. p. 227.
“With a dusky and blue-bill; yellow cere; head, neck and breast of a deep ash-color, each cheek marked with a broad black bar passing from the corner of the mouth beyond the eyes; back, belly, wings, and tail, black; legs yellow; feathered below the knees. Is about the size of the last (the Golden Eagle) North America,” (Pennant, as above.)
Of this bird, Gmelin gives a short abstract of Pennant’s description, and applies a scientific name. Naturalists relying solely on that abstract, have erroneously considered the species meant as the Golden Eagle (A. chrysaetus), and the name Falco americanus has accordingly been usually quoted as a synonyme. Though “feathered below the knees” is somewhat indefinite, yet, taken in connexion with “legs yellow,” it is clear that this cannot be the Golden Eagle, which has the tarsus densely feathered. There is no North American species known to which the original description applies.
2. Falco candidus. Gm., Syst. Nat., I. p. 258. (1788.) The Louisiana White Eagle. Lath., Syn., I. p. 36. Du Pratz, Hist. Louisiane, II. p. 109. Falco conciliator. Shaw, Gen. Zool. Aves., VII. p. 77. (1809.)
White; tips of the wings black. Smaller than the Golden Eagle.
This bird is represented by Du Pratz as held in high estimation by the aborigines of Louisiana, who used its feathers for ornamenting the calumet or symbol of peace. It may have been an albino of a known species, or distinct and now unknown. The description applies to a beautiful Mexican species, Buteo Ghiesbrectii (Dubus), which is about the size of the Red-tailed Hawk (B. borealis), and should it ever be observed in Louisiana, the question may be considered as settled.
3. Falco variegatus. Gm., Syst. Nat., I. p. 267. (1788.) The Speckled Buzzard. Lath., Syn., I. p. 97.
“Length more than 12 inches; in shape like our common buzzard. The bill is dusky; the whole head and neck as far as the shoulders whitish; the shaft of each feather blotched irregularly with rusty-brown; back and wing-coverts brown, several of the feathers, especially on the wing-coverts, are spotted with white; tail dark brown, crossed with several bars; but these are nearly obsolete, appearing on close inspection; the quills are very dark, almost black; the under parts from the breast are white; down the shaft of each feather is a blotch of brown; these marks spread out larger and broader as they proceed downwards to the belly; thighs pretty much the same; vent plain white; legs yellow; claws black. A fine specimen of this bird is in the Leverian Museum, which came from North America.” (Latham, as above.)
Generally cited as a synonyme for the Marsh Hawk, Circus hudsonius, with, as we think, but a small degree of propriety. It appears to us to be the young of either Buteo pennsylvanicus or Accipiter cooperii, or an unknown bird.
4. Falco albidus. Gm., Syst. Nat., I. p. 267. (1788.) The Buzzardet. Penn., Arct. Zool., I. p. 245.
“With dusky bill; head, cheeks, neck, breast and belly white, marked with large brown spots more sparingly dispersed over the breast and belly; lesser coverts brown; the others colored like the head; primaries dusky; thighs white, with small sagittal spots of brown; tail dusky, barred and tipped with white; legs yellow. Length, 15 inches. It has much the habit of the Buzzard, but the legs in proportion are rather longer. In the Leverian Museum. Except in the almost uniform color of the tail, Mr. Latham’s species, p. 97, No. 83, agrees with this (which is the preceding F. variegatus). North America.” (Pennant, as above.)
Probably the same as the preceding.
5. Falco obsoletus. Gm., Syst. Nat., I. p. 268. (1788.) The plain Falcon. Penn., Arct. Zool., I. p. 242.
“Bill black; head dusky; nape spotted with white; back and coverts of the wings and tail of an uniform deep brown; under-side of the neck, breast, belly and thighs deep brown, slightly spotted with white; primaries dusky; inner webs marked with great oval spots of white, mottled with brown; middle feathers of the tail plain brown; inner webs of the rest mottled with white; exterior webs and ends slightly edged with the same; legs strong; wing reaches near the length of the tail. Length, from bill to tail, 2 feet 1 inch. Inhabits Hudson’s Bay.” (Pennant, as above.)
We are acquainted with no bird to which this description and measurement apply.
6. Falco spadiceus. Gm., Syst. Nat., I. p. 273. (1788.) The Chocolate-colored Falcon. Penn., Arctic Zool., I. p. 234, pl. 9.
“With a short and black bill, and yellow cere. The whole plumage of a deep bay or chocolate color, in parts tinged with ferruginous; primaries black; the lower exterior sides of a pure white, forming a conspicuous spot or speculum; the wings reach to the end of the tail; the exterior sides of the five outermost feathers of the tail dusky; their inner sides blotched with black and white; the two middle black and cinereous; the legs and toes feathered, the last remarkably short. Length, 1 foot 10 inches. Inhabits Hudson’s Bay and Newfoundland. Preys much on ducks. Sits on a rock and watches their rising, when it instantly strikes at them.” (Pennant, as above.)
Regarded by authors as a synonyme for the Black Hawk (Archibuteo sancti-johannis), but the description suits better the Ferruginous Buzzard (A. ferrugineus). Neither of these has, however, the toes feathered, nor otherwise entirely agrees with the description. It may be an unknown species.
7. Falco obscurus. Gm., Syst. Nat., I. p. 281. (1788.) The Dusky Falcon. Penn., Arct. Zool., I. p. 248.
“With a bluish bill; upper mandible armed with a sharp process; yellow cere; head, neck and coverts of the wings and tail dusky brown, slightly edged with ferruginous; hind part of the neck spotted with white; primaries dusky; inner webs marked with oval spots of a pale rust color; tail short, tipped with white, and barred with four broad dusky strokes, and the same number of narrow ones of white; the hind part of the head spotted with white; from the chin to the tail whitish, streaked downwards with distinct lines of black; legs deep yellow. Inferior in size to the last (F. dubius or fusca). Inhabits the province of New York.” (Pennant, as above.)
Cited by authors as a synonyme for the sharp-skinned Hawk (Accipiter fuscus), which seems to be erroneous, though correct enough if reference only be made to Gmelin’s compilation of Pennant’s description. The latter, as quoted above, and which is the original, appears to apply to Falco columbarius (Linn.), but not with sufficient accuracy to be without doubt, and we know of no bird at present inhabiting “the province of New York” that it entirely suits.
8. Aquila maculosa. Vieill., Ois d’Am. Sept., I. p. 28, pl. 3 bis. (1807.)
Upper part of the head, nape, neck, and mantle, black; eyebrow white, bordered by a black line from the eye; space between the bill and eye and cere blue, the former with scattered hairs; iris yellow; throat and breast white, every feather with a longitudinal central stripe of black; abdomen black, many feathers having circular spots of white; tibia and under tail-coverts ferruginous, with central spots of brownish; rump and upper tail-coverts white, with transverse stripes of black; quills and tail leaden gray above, light bluish-gray beneath; feet orange; claws blackish. Total length, about 25 inches; wing, 16; tail, 10 inches.
An excellent figure of this bird is given by Vieillot, as above, but which represents no species with which we are acquainted. In general appearance it resembles Phalcobænus carunculatus, Des Murs (Rev. et Mag. de Zool., April, 1853, p. 154), a South American species, of which specimens are in the collection of the Philadelphia Academy. Though given by Vieillot as a bird of North America (as above, and in Nouv. Dict., XXXII. p. 56), we suspect that he was mistaken.
9. Sparvius ardosiaceus. Vieill., Ency. Meth., III. p. 1274. (1823).
Body above, bluish slate color; beneath, ferruginous, with transverse white bands; chin white; bill bluish-black; feet orange; cere and edges of the mouth dull green; quills and tail brownish-black; eyebrows dull white; tail slightly forked. North America.
Possibly Accipiter fuscus, but we regard it as quite remarkable that Vieillot, at so late a date, should have again described that species, being undoubtedly well acquainted with North American birds. We recollect no bird which exactly suits this description.
10. Falco Bachmanii. Aud., Orn. Biog., V. p. 334. (1839, the date on the title-page of this volume is erroneously printed 1849.)
“I have several times seen in South Carolina a Hawk flying, equal in size to Falco lineatus, and remarkable for the great breadth of its wings. It was of a uniform brown color, excepting the tail, which was barred with white. The same bird has also been repeatedly observed by my friend, Dr. Bachman, who feels assured of its being distinct from any other Hawk hitherto found in North America.” (Audubon, as above.)
This is the entire and only description published and the species alluded to has never been identified, to our knowledge.
11. Milvus leucomelas. Rafinesque, Annals of Nature, part I. p. 4. (1820.)
“White, unspotted; top of head and part of the back, wings, tail, and bill, black; feet yellow. It is found in West Kentucky and Illinois; it feeds on fishes, and is therefore called Fishing Hawk. Size small, tail quite forked.” (Raf., as above.)
This is a puzzler. If any such bird exists, it has escaped late researches, though we very much suspect that Rafinesque ventured a description on reports, rather oddly confounding the Forked-tailed Hawk (Nauclerus) and the Osprey, or Fish Hawk (Pandion).
12. Aquila dicronyx. Rafinesque, Atlantic Journal, p. 63. (1832.)
The specimen described under this name was the same that is alluded to by Mr. Audubon in his article on the White-headed Eagle, in Orn. Biog., II. p. 163, as being kept in captivity in the suburbs of Philadelphia, and this description and its author he also alludes to. We mention this bird for the purpose of facilitating the student who may not have access to the works of Rafinesque, and for the purpose of pointing out a curious error into which Mr. Audubon and Dr. Harlan, as quoted by him, seem to have fallen, in regarding it as the White-headed or Bald Eagle (Haliaetus leucocephalus). It is expressly stated by Rafinesque to have been brought from “near Buenos Ayres,” and was evidently, from his description, the Circaetus coronatus of South America. This name is therefore by no means to be cited as a synonyme for Haliaetus leucocephalus.
13. Falco doliatus. Shaw, Gen. Zool., Aves., VII. p. 77. (1809.)
“Length ten inches; bill violet; cere, irides, and legs, yellow; tail marked with whitish bars more apparent beneath than above; under tail-coverts and flanks brown, with two or three round white spots on each side of the shaft; thighs ferruginous, with black shafts. Inhabits Carolina, observed by Bosc.” (Shaw, as above.)
Probably the young of either Hypotriorchis columbarius or Accipiter fuscus, but quite impossible to identify from such a meagre description.
14. Falco glaucus. Bartram, Travels, p. 290. (1791.) Barton, Fragments of the Nat. Hist. of Penna., p. 11. (1799.)
“The sharp-winged hawk, of a pale sky-blue color, the top of the wings black.” (Bartram, as above.)
This insufficient description has been supposed to be intended for the adult of the Marsh Hawk (Circus hudsonius), but Barton (as above) applies it to the Nauclerus furcatus. It is probably one or the other.
15. Falco subceruleus. Bartram, Travels, p. 290. (1791.)
“The sharp-winged hawk, of a dark or dusky blue color.” (Bartram, as above.)
Impossible to identify, from its brevity. It may be either the Mississippi Kite (Ictinia mississippiensis), the Fork-tailed Hawk (Nauclerus furcatus), or the adult Marsh Hawk (Circus hudsonius).
16. The following names have been given without descriptions, by the authors cited:—
Falco regalis. The great Gray Eagle. Bartram, Trav., p. 290. Barton, Frag. Nat. Hist. Penna., p. 11. Falco gallinarius. The Hen Hawk. Bartr. Trav., p. 290. Falco pullarius. The Chicken Hawk. Bartr. Trav., p. 290. Falco ranivorus. The Marsh Hawk. Bartr. Trav., p. 290. Falco piscatorius. The Fishing Eagle. Bartram, Trav., p. 290. Barton, Frag. Nat. Hist. Penna., p. 2, 17. Falco cæsius. The Blue Hawk. Ord., Zool. N. A., in Guthrie’s Geog, I. p. 315.
The above embrace all the names and descriptions of birds of this family that have come under our notice, except those of such as are now well ascertained to inhabit other countries exclusively, and for which nearly allied species of North America have been mistaken. Of the latter we may more particularly mention the European Falco rusticolus (Linn.), which is given by Fabricius as a bird of Greenland, but stated by Holboll to have been the young of F. anatum, and Buteo vulgaris and Hypotriorchis æsalon, both of which are also European species, and have never been found in America to our knowledge, though there are species which are nearly related to them.
The student may advantageously bear in mind that of those above, which were originally described by Pennant, in English, abstracts or compilations only, in Latin, are given by Gmelin in his edition of the Systema Natura of Linnæus. These abstracts are mostly very short, and not always to be relied on as conveying strictly the sense of the originals. Nor are they at all improved by Turton in his edition of Linnæus, in which, so far as relates to these species, he merely retranslates into English the Latin text of Gmelin without reference to Pennant. In the study of the obscure species alluded to, the original descriptions only can be consulted without risk of error.
Plate 16
The American Lanier
Falco polyagrus (Cassin)
FALCO POLYAGRUS.—Cassin.
The American Lanier Falcon.
PLATE XVI.—Male and Female.
The researches of late naturalists have tended to demonstrate that the animals of Western North America have a more intimate relationship with those of Asia and the old world generally than those of the Eastern portion of this continent. Nor is this affinity restricted, apparently, to any one class, or to such as might have migrated, but is found to exist in a greater or less degree in classes of animals, as that of reptiles, possessing powers of locomotion too limited to admit of such supposition. When, too, we have had our attention directed to the family of Sparrows and Finches, to the beautiful Jays and Magpies, or the various species of Grouse, Partridges, and many other families, we have been almost persuaded to entertain the opinion that the birds of Western America are of a higher grade of organization than those of the Atlantic States. Whether such is the case in other classes of animals, we are not prepared to say, but, if true, it is singularly accordant with the fact that, of the aboriginal American races of men, the West has produced the superior. And it is remarkable, too, that there are Western tribes which very intimately resemble the Mongolian variety of the human race, if they do not really belong to it; thus connecting themselves with the Chinese and Japanese, and other nations of Northern Asia.
The remarkable Falcon which we now have the pleasure of introducing to the reader, is one of the species that show close affinity to an Asiatic congener. It is so much like a common Falcon of India, a bird much used for the purposes of falconry, and known by the name of the Jugger, in the valley of the Indus and other parts of India (Falco jugger. Gray, Ill. of Indian Zoology, II. pl. 26, and Jerdon, Ill. Indian Orn., pl. 44), that it can scarcely be distinguished from it by any character, except size. It is in fact one of the most remarkable instances of close proximity to an Asiatic relative to be found in American birds. It is larger than the Indian Jugger, and more powerful and robustly organized.
Though trained for the chase, the Asiatic bird alluded to is not held in as high estimation as several others; the greatest favorites being the Peregrine Falcon (Falco peregrinus), nearly related to the Duck Hawk of the Atlantic coast of America (F. anatum), and the Indian Goshawk (Astur palumbarius), which is also a relative of an American species. Falconry, though now little cultivated in Europe, is yet a much-pursued and favorite pastime in several countries of the East. In addition to the Hawks just mentioned, several others, a few of which are more or less nearly related to species of this country, are employed. Some of the smaller Hawks of India are so easily trained that they are set free at the close of a hunting season, the Falconer not considering them of sufficient value to induce him to keep them until another.
The home of the bird now before us, appears to be the mountainous regions of Oregon and California, from which it descends in the winter season to the lower districts, in the valleys of the rivers, and on the shores of the Pacific. In the former country, near the sources of the Platte river, the first specimen that we ever saw, was obtained by the late Dr. John K. Townsend during his trip across the continent in the year 1834, and in whose collection, now belonging to the Philadelphia Academy, it yet remains. Since that period it has been observed in the Rocky Mountains and on the Columbia river, by the naturalists attached to the United States Exploring Expedition, in the Vincennes and Peacock. In the fine zoological collection made by this expedition, is preserved the only female specimen, in the dark plumage, described below, yet known to have been brought to the attention of naturalists. In California, Dr. Heermann particularly noticed this bird, and his collection contains several specimens which he obtained in the plains near Sacramento city.