Part 12

Form robust; wings rather long, third quill longest, secondaries emarginate at their tips; quills unusually broad; tail rather short, slightly rounded; tarsi feathered in front below the joint, naked behind, and having in front about ten transverse scales. Under wing-coverts and under tail-coverts white, the former striped longitudinally with pale-ferruginous, and some of them transversely with dark-brown, the latter with transverse stripes of pale reddish-brown. Plumage of the tibiæ dark-ferruginous mixed with brown. Throat and a few feathers in front white, with narrow lines of black. Entire other plumage above and below dark-brown, nearly every feather having a darker or nearly black line on its shaft. Quills above brown, with a purple lustre, beneath pale-ashy, with their shafts white, and irregularly barred with white near their bases. Tail above dark-brown, with an ashy or hoary tinge, and having about ten obscure bands of a darker shade of the same color, beneath nearly white, with conspicuous bands of brown, the widest of which is next to the tip, which is paler. Tarsi and feet yellow. Sex unknown.

Dimensions. Total length (of skin), 17 inches; wing, 14½; tail, 7½ inches.

Hab. Canada (Dr. M’Culloch). Spec. in Mus. Nat. Hist. Soc. of Montreal, Canada.

Obs. Of this very remarkable little Buzzard one specimen only has come under our notice, and is that above described. It belongs to the collection of the Natural History Society of Montreal, by whom it was most kindly sent to Philadelphia for examination at our request, through the good offices of M. M’Culloch, M. D., a distinguished physician and naturalist of that city.

In color, though a true _Buteo_, this bird differs from any known American species, and more resembles in that respect some stages of the young plumage of _Circus hudsonius_ or _C. æruginosus_. It was captured in the vicinity of Montreal.

II. GENUS ARCHIBUTEO. Brehm, Isis, 1828, p. 1269. TRIORCHIS. Kaup, Syst. Eur. Thier., p. 84. (1829.) BUTAETES. Less., Traité, p. 83. (1831.)

General characters very similar to those of _Buteo_, but with the tarsus densely feathered to the base of the toes, but more or less naked on the hind part. Toes short; claws moderate; wings rather long. Contains about six species, of both continents.

1. Archibuteo sancti-johannis. (Gmelin.) The Black Hawk. The Rough-legged Buzzard. Falco sancti-johannis and NOVÆ-TERRÆ. Gm., Syst. Nat., I. pp. 273, 274. (1788.) Falco niger. Wils., Am. Orn., VI. p. 82. (1812.) Buteo ater. Vieill., Nouv. Dict., IV. p. 482. (1816.) Falco spadiceus. Gm., Syst. Nat., I. p. 273?

Wilson, Am. Orn., VI. pl. 53, figs. 1, 2; Faun. Bor. Am., Birds, pl. 28; Aud., B. of Am., pl. 422, oct. ed. I. pl. 11.

Large, and rather heavy; wings long; tarsi feathered, a narrow space naked behind; toes naked, and rather short. Adult. Entire plumage glossy black, in many specimens with a brown tinge; forehead, throat, and a large space on the head behind, mixed with white. Tail with one well-defined band of white, and irregularly marked towards the base with the same color. Quills with their inner webs white, most readily seen on the under-surface of the wing. Some specimens have several well-defined bands of white in the tail. Others have the entire plumage dark chocolate-brown, with the head more or less striped with yellowish-white and reddish-yellow. Cere and legs yellow.

Younger. Upper-parts light umber-brown, with the feathers more or less edged with yellowish-white and reddish-yellow; abdomen with a broad transverse band of brownish-black; other under-parts pale yellowish-white, longitudinally striped on the neck and breast with brownish-black; wings and tail brown, tinged with cinereous; quills for the greater part of their length white on their inner webs; tail-feathers white at their bases. Plumage of the tibiæ and tarsi pale reddish-yellow, spotted with brown. Other specimens have the throat and breast with the black color predominating.

Young male? Entire upper-parts light ashy-brown, more or less mixed with white, especially on the head and fulvous; under-parts yellowish white and dark-brown, the latter assuming the form of longitudinal stripes on the breast, and narrow transverse stripes on the abdomen; tarsi and tibiæ dark-brown, striped with dull-white and reddish; greater part of quills and tail white. Cere and legs yellow.

Dimensions. Total length, _female_, 22 to 24 inches; wing, 17 to 17½; tail, 9 inches. _Male_—total length, about 20 to 21 inches; wing, 16 to 16½; tail, 8 to 8½ inches.

Hab. Entire North America; Oregon (Townsend). Spec. in Mus. Acad. Philada.

Obs. This is one of the most abundant of the birds of this family, in all the States on the Atlantic, and is one of the most variable in plumage. Two stages of plumage—the adult black bird and the young, when the wide abdominal band of black is well defined—are easily recognized; but there are a variety of other plumages which are difficult to refer to their proper age, sex, or season. Although the stage of plumage described above as perhaps that of the young male (figured by Wilson, pl. 53, fig. 2, and Aud., pl. 422, fig. 2) may be correct, we regard it as by no means established, and in fact are inclined to suspect that there are two distinct species confounded.

2. Archibuteo lagopus. (Gm.) The Rough-legged Buzzard. Falco lagopus. Gmelin, Syst. Nat., I. p. 260. (1788.)

Wils., Am. Orn., IV. pl. 33, fig. 1; Aud., B. of Am., pl. 166; Gould, B. of Eur., I. pl. 15.

Very similar in general form to the preceding. Above light umber-brown; many feathers, especially of the head and neck behind, edged with yellowish white and fulvous. A wide transverse band or belt on the abdomen brownish-black; other under-parts yellowish-white, with a few longitudinal lines and spots of brownish-black; quills ashy-brown, with a large basal portion of their inner webs white; tail at its base white, which is also the color of the greater part of the inner webs of its feathers almost to the tip; terminal portion light umber-brown; tip white. Plumage of the tibiæ and tarsi pale reddish-yellow, striped longitudinally with brown.

Dimensions. _Female_—total length, 21 to 23 inches; wing, 16 to 17; tail, 9 inches. _Male_—smaller.

Hab. All of North America; Europe; California (Mr. Bell); Wisconsin (Dr. Hoy). Spec. in Mus. Acad. Philada.

Obs. The bird here inserted as identical with the European _Archibuteo lagopus_ has been usually regarded, by late naturalists, as the young of the species immediately preceding. Such may be the truth of the case, and our only reason for giving it thus is, that after careful comparison and examination of numerous specimens, we find it absolutely impossible to distinguish it, by any character whatever, from the European bird. Whether two birds can be exactly the same in all their characters, so far as presented by specimens, and yet be distinct in species, is a question that we are not prepared at present practically to decide. We regard it as quite possible, however, that the present may be the young of _A. sancti-johannis_. It is one of the most common species of its family. Mr. Bell’s specimens from California are, so far as we can see, exactly the same as the European bird, differing from eastern specimens only in very unimportant characters.

3. Archibuteo ferrugineus. (Licht.) The Western Rough-legged Buzzard, Buteo ferrugineus. Lichtenstein, Trans. Berlin Acad., 1838, p. 428. Archibuteo regalis. Gray, Genera of Birds. I. pl. 6. (1849, plate only.)

Larger than either of the two preceding. Bill wide at base; wings long; tarsi feathered in front to the toes, naked and scaled behind. Adult. Tibiæ and tarsi bright ferruginous, with transverse stripes of black, irregular and indistinct on the latter. Entire upper-parts striped longitudinally with dark-brown and light-rufous, the latter color predominating on the rump and lesser wing-coverts. Quills ashy-brown, lighter on their outer webs, and with the greater part of their inner webs white; tail above reddish-white, mottled with ashy-brown; tail beneath pure yellowish-white. Under-parts of the body white, with narrow longitudinal lines and dashes on the breast of reddish-brown and narrow irregular transverse lines of the same color, and black on the abdomen; flanks and axillary feathers (under the wing) fine bright-ferruginous.

Young. Entire upper-parts dark umber-brown, very slightly mixed with fulvous; upper tail-coverts white, spotted with brown; entire under-parts pure white, with a few narrow longitudinal lines and dashes of brown on the breast, and arrow-heads of the same color on the sides and abdomen, larger and more numerous on the flanks; tibiæ white; tarsi dark-brown, mixed with white; under wing-coverts and edges of wings white.

Dimensions. _Female_—total length, about 23 to 25 inches; wing, 17 to 17½; tail, 9 inches. _Young_—smaller.

Hab. California (Mr. E. M. Kern); Sacramento valley (Dr. Heermann). Spec. in Mus. Acad., Philada.

Obs. This is one of the handsomest of the American Falconidæ. It is also one of the largest of the Buzzards, and easily distinguished from the preceding species. Of the recent American travellers, Mr. E. M. Kern was the first who brought home this fine species; since which adults, young birds, and eggs, have been collected by Dr. Heermann. It is not rare in California.

IV. SUB-FAMILY MILVINÆ. THE KITES.

Size various, usually medium or small. Bill short, weak, hooked, and acute; wings and tail usually long; tarsi and feet slender, frequently short. The birds of this sub-family habitually feed on reptiles and other small animals, and are deficient in the strength and courage of those of the other sub-families. About thirty-five species of all countries belong to this group.

I. GENUS NAUCLERUS. Vigors, Zool. Jour., II. p. 386. (1825.)

CHELIDOPTERYX. Kaup, Class., p. 112. (1844.)

Bill short and weak; wings and tail very long, the former pointed, the latter deeply forked. Tarsi very short; toes short. Contains not more than three species, two of which are American, and the other African.

1. Nauclerus furcatus. (Linn.) The Swallow-tailed Hawk. Falco furcatus. Linn., Syst. Nat., I. p. 129. (1766.)

Cat. Car, pl. 4; Buff., Pl. Enl., 72; Wilson, Am. Orn., VI., pl. 51, fig. 3; Aud., B. of Am., pl. 72, oct. ed. I. pl. 18; Gould, B. of Eur., 1. pl. 30; De Kay, Nat. Hist. N. Y., Birds, pl. 7, fig. 15.

Wings and tail long, the latter deeply forked. Head and neck, inferior wing-coverts, secondary quills at their bases, and entire under-parts, white. Back, wings, and tail, black, with a metallic lustre, purple on the back and lesser wing-coverts, green and blue on other parts. Tarsi and feet greenish-blue; bill horn color.

Dimensions. _Female_—total length, 23 to 25 inches; wing, 16 to 17½; tail, 14 inches. _Male_—rather smaller.

Hab. Southern States on the Atlantic, and centrally northward to Wisconsin; Texas (Mr. Audubon); South Carolina (Prof. Gibbes); Wisconsin (Dr. Hoy); Pennsylvania (Mr. A. F. Darley); Jamaica (Mr. Gosse). Accidental in Europe. Spec. in Mus. Acad., Philada.

Obs. This very handsome Hawk is especially abundant in the Southern States. It cannot readily be confounded with any other North American species, though we have not been able to compare it with the _Elanoides yetapa_, Vieill., of South America, with which it is either identical or very similar.

II. GENUS ELANUS. Savigny, Nat. Hist. Egypt, I., 97. (1809.)

Bill short, compressed, hooked; wings long, pointed; tail moderate, generally emarginate; tarsi short. Contains four species only, much resembling each other; one of which is American, one African, and two Australian.

1. Elanus leucurus. (Vieill.) The Black-shouldered Hawk. The White-tailed Hawk. Milvus leucurus. Vieill., Nouv. Dict., XX. p. 563. (1818.) Falco dispar. Temm., Pl. Col., I. (Liv. 54, about 1824.) “Falco melanopterus. Daud.” Bonap., Jour. Acad. Philada., V. p. 28. “Falco dispar. Temm.” Aud., Orn. Biog., IV. p. 367.

Bonap., Am. Orn., II. pl. 11, fig. 1; Temm., Pl. col. 319; Aud., B. of Am., pl. 352, oct. ed. I. pl. 16. Gay’s Chili Orn., pl. 2.

Head above, entire under-parts, and tail, white, the middle-feathers of the latter usually tinged above with ashy, and the head posteriorly tinged with the same color, which gradually shades into a fine light-cinereous, which is the color of the upper-parts of the body, quills, and greater wing-coverts. Lesser wing-coverts glossy black, which forms a large oblong patch; inferior wing-coverts white, with a smaller black patch. Bill dark; tarsi and feet yellow.

Dimensions. _Female_—total length, 15½ to 17 inches; wing, 12; tail, 7½ inches. _Male_—smaller.

Hab. Southern States; California (Dr. Heermann); South Carolina (Prof. Gibbes); Chili (Lieut. Gillis). Spec. in Mus. Acad., Philada.

Obs. An abundant species in the Southern and South-western States. It is larger than the African _E. melanopterus_, with which it has been confounded, but considerably resembling it and the Australian species in form and general characters.

III. GENUS ICTINIA. Vieill., Analyse, p. 24. (1816.)

NERTUS. Boie, Isis, 1828, p. 314. PŒCILOPTERYX. Kaup, Class., p. 112. (1844.)

Bill short, tip emarginated; wings long, pointed; tail rather short; usually emarginated; tarsi short. Two American species constitute this genus.

1. Ictinia mississippiensis. (Wilson.) The Mississippi Kite. Falco mississippiensis. Wilson, Am. Orn., III. p. 80. (1811.) Falco ophiophagus. Vieill., Nouv. Dict., XI. p. 103. (1817.) “Ictinia plumbea. Gm.” Aud., Orn. Biog., II. p. 108.

Vieill., Gal., I. pl. 17; Wilson, Am. Orn., III. pl. 25, fig. 1; Aud., B. of Am. pl. 117, oct. ed. I. pl. 17.

Head, exposed ends of secondary quills, and entire under-parts, light-cinereous, palest and nearly white on the tips of the secondaries. Back, wing-coverts, and rump dark lead-color; primaries and tail brownish-black, the latter with a tinge of bluish. Bill dark; tarsi and feet lighter.

Dimensions. Total length, _female_, about 15 inches; wing, 11 to 11½; tail, 6½ inches. _Male_—smaller.

Hab. Southern States; Texas (Mr. Audubon); South Carolina (Prof. Gibbes). Spec. in Mus. Acad., Philada.

Obs. This bird is quite different from the South American _I. plumbea_, for which it has been mistaken by American naturalists; in fact, it is so little like it, that a comparison of specimens of the two species would render a suspicion of their identity quite impossible.

IV. GENUS ROSTRHAMUS. Lesson, Traité d’Orn., I. p. 55. (1831.)

Bill long, very slender, hooked, and sharp at the tip; wings long, pointed; tail rather long, emarginate; tarsi and toes rather long; claws very long, slender, acute. The present is the only species.

1. Rostrhamus sociabilis. (Vieill.) The Hooked-billed Hawk. Herpetotheres sociabilis. Vieill., Nouv. Dict., XVIII. p. 318. (1817.) Cymindis leucopygius. Spix, Av. Bras., I. p. 7. (1824.) Rostrhamus niger. Less., Traité, I. p. 56. (1831.) “Falco hamatus. Illiger.” Lesson, as above.

Temm., Pl. col. I. 61, 231; Spix, Av. Bras., I. pl. 2; Guerin, Mag. de Zool., 1834, pl. 20.

Adult. Tail at base, and under tail-coverts, white; all other parts black. Naked space before the eye yellow, which is also the color of the feet; bill and claws black. Tail usually tipped with pale-cinereous. Younger. Throat and line over and behind the eye yellowish-white; general plumage brownish-black, mixed with yellowish-white on the under-parts of the body. Young. Forehead—stripe behind the eye and throat reddish or ferruginous-white; upper-parts brown, many feathers edged with pale-ferruginous; under-parts yellowish, with longitudinal stripes of black; tail at tip and base, and under tail-coverts, yellowish-white. Legs yellowish-green.

Dimensions. _Female_—total length (of skin), 16 inches; wing, 14; tail, 7½ inches. _Male_—smaller.

Hab. Florida (Mr. Harris, Dr. Heermann). Spec. in Mus. Acad., Philada.

Obs. This bird is remarkable for its slender and hooked bill, unlike that of any other Falcon. It is well known as a South American bird, and was first noticed in Florida by Mr. Edward Harris; subsequently by Dr. Heermann. Both these gentlemen having obtained specimens of young birds, it is probably a constant resident of that State.

V. GENUS CIRCUS. Lacepede, Mem. d’Inst., III. p. 506. (1803.)

STRIGICEPS. Bonap., Comp. List., p. 5. (1838.)

Size medium; head rather large; face partially encircled by a ring or ruff of short projecting feathers (as in the Owls). Bill rather short, compressed, curved from the base; nostrils large; wings long, pointed; tail long, wide; tarsi long and slender, compressed; toes moderate; claws long, rather slender. Embraces about fifteen species, of all parts of the world.

1. Circus hudsonius. (Linn.) The Marsh Hawk. The Harrier. Falco hudsonius. Linn., Syst. Nat., I. p. 128. (1766.) Falco uliginosus. Gm., Syst. Nat., I. p. 278. (1788.) Falco europogistus. Daudin, Traité, II. p. 110. (1800.) “Falco uliginosus.” Wilson, Am. Orn., VI. p. 67. “Falco cyaneus. Linn.” Aud., Orn. Biog., IV. p. 396.

Edw., Birds, VI. pl. 291; Vieill., Ois. d’Am., pl. 9; Wilson, Am. Orn., VI. pl. 51, fig. 2; Bonap., Am. Orn., II. pl. 12; Aud., B. of Am., pl. 356, oct. ed. I. pl. 26; Faun. Bor. Am., Birds, pl. 29; De Kay, Nat. Hist. N. Y. Orn., pl. 3, figs. 6, 7.

Form slender; tarsi long; ruff very distinct on the neck in front. Adult. Upper-parts, head, and breast, pale grayish-cinereous, generally more or less tinged with fuscous, and on the back of the head mixed with dark fulvous; upper tail-coverts white. Under-parts white, usually with many small cordate or hastate spots of light-ferruginous; quills brownish-black, with their outer webs tinged with ashy, and a large portion of their inner webs white; tail light-cinereous, nearly white on the inner webs of the feathers, and with obscure bands of brown; under-surface white; inferior wing-coverts white; secondaries tipped with dark-brown. Young. Entire upper-parts dark umber-brown, mixed with fulvous, and white on the occiput and neck behind; upper tail-coverts white. Tail reddish-brown, with about three broad bands of dark-fulvous, paler on their inner webs. Under-parts rufous, with stripes of brown on the breast and sides; tarsi and feet yellow. In younger birds, on the under-parts the brown stripes are more numerous.

Dimensions. _Female_—total length, 19½ to 21 inches; wing, 15½; tail, 10 inches. _Male_—total length, 16 to 18 inches; wing, about 14; tail 8½ to 9 inches.

Hab. All of North America; California (Col. M‘Call); Oregon (U. S. Ex. Exp. Vincennes); Cuba (M. de Sagra, M. Lembeye). Spec. in Mus. Acad., Philada.

Obs. Resembles to some extent the _Circus cyaneus_ of Europe, but is easily distinguished from it by its colors and rather larger size. The adults and young of this species present great differences in color and general appearance.

V. SUB-FAMILY AQUILINÆ. THE EAGLES.

Size usually large. Bill large, compressed, straight at base, curved and acute at the tip; wings long, pointed; tail ample, generally rounded at the end; tarsi moderate or rather long, strong; toes long, strong; claws very strong, curved, acute. This sub-family includes about seventy species, of all countries.

I. GENUS AQUILA. Mœhring, Av. Gen. p. 49. (1752.)

Large, bill large, strong, compressed, and hooked at the tip; wing long, pointed, very strong; tarsi moderate, feathered to the base of the toes. Tail rather long, rounded or wedge-shaped; toes and claws long; the latter very sharp and curved. Contains about twenty species, which are regarded as the true Eagles.

1. Aquila chrysaetos. (Linn.) The Golden Eagle. The ring-tailed Eagle. Falco chrysaetos and fulvus. Linn., Syst. Nat., I. p. 125. (1766.) Falco canadensis. Linn., Syst. Nat., I. p. 125. (1766.) Aquila nobilis. Pallas, Zoog. Ross. As., I. p. 338. (1811.) Falco niger. Gm., Syst. Nat., I. p. 259. (1788.)?

Edw., Birds, pl. 1; Brown, Ill., pl. 2; Buff. Pl. Enl. 409, 410; Wils. Am. Orn., pl. 55, fig. 1; Aud. B. of Am., pl. 181; oct. ed. 1, pl. 12.

Very large; tarsi densely feathered to the toes. Adult. Head above and behind and neck behind light-brownish fulvous, much varying in shade in different specimens. Base of the tail pure white, which color varies in extent in different specimens, but generally occupies the greater part of the tail; remaining portion glossy black. All other parts rich purplish-brown, very dark, and nearly black on the under-surface. Primary quills shining black, secondaries purplish-brown, with a violet tinge; tibia and tarsi brownish-fulvous, tinged with ashy; toes yellow. Younger. Entire plumage mixed with fulvous, and with the under-surface of the body paler.

Dimensions. _Female_—total length, 33 to 40 inches; wing, about 25; tail, about 15 inches. _Male_—smaller.

Hab. Whole of North America; Oregon (Dr. Townsend). Spec. in Mus. Acad., Philada.

Obs. We are not without doubts as to the specific identity of the American and the European Golden Eagles. All the American specimens that we have examined are smaller, the bill shorter, and the plumage much darker than those of Europe. We have not at present, however, a sufficient number of either continent, and it unfortunately happens that nearly all our European specimens are young birds, while the American are adults. Mr. Audubon’s plate represents this bird in nearly mature plumage.

II. GENUS HALIAETUS. Savigny, Hist. Nat. d’Egypt, I. p. 85. (1809.)

Size large; tarsi short, naked, or feathered for a short distance below the joint of the tibia and tarsi, and with the toes covered with scales. Bill large, strong, compressed; margin of upper mandible slightly festooned; wings rather long-pointed; tail moderate; toes rather long; claws very strong, curved, sharp. This genus contains about ten species of all parts of the world, all of which prey more or less on fishes, and are known as Fishing or Sea Eagles.

1. Haliaetus pelagicus. (Pallas.) The Northern Sea Eagle. Aquila pelagica. Pallas, Zoog. Rosso-Asiat., I. p. 343. (1811.) “Aquila marina. Steller, MSS.” Pallas as above. Falco imperator. Kittlitz., Kupf. Nat. Vog., pt. I. p. 3. (1832.) Falco leucopterus. Temm., Pl. col. 1. p. (no page.)

Kittlitz Kupf., pl. 2; Temm., Pl. col. I., pl. 489. Cassin. B. of California and Texas, I., pl. 6.

The largest of the Eagles. Wings rather shorter than usual in this genus; tail wedge-shaped, and composed of fourteen feathers. Adult. Large frontal space, greater wing-coverts, abdomen and tail white; all other parts of the plumage dark brown or brownish-black; bill and legs yellow. Younger. Tail white, more or less marked with brownish-black. All other parts brownish-black, lighter on the head and neck. Quills black, secondaries and tertiaries white at their bases; bill and feet yellow.

Dimensions. _Female_—total length, 3 feet 8 inches; wing, 2 feet 2 in.; tail, 1 foot 4 inches.

Hab. Russian-American Islands (Pallas); Japan (Temminck & Schegel). Spec. in Mus. Acad., Philada.

Obs. This very large and powerful bird inhabits north-eastern Asia and the islands between that continent and America, and probably other parts of Russian-America. It is the largest of the Eagles, and appears to be related to the species immediately succeeding.