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12. 1. Aquila Chrysaetos, Linn. Golden Eagle

Plate CLXXXI. Female.

General colour of the plumage dark brown glossed with purple; occiput, hind part and sides of the neck, light brownish-yellow; wing-coverts light brown; primary quills brownish-black, secondary with the coverts brown, those next the body more or less mottled with brownish-white, excepting at the ends; tail dark brown, lighter towards the base, with a few irregular whitish markings; feathers of the legs and tarsi, and lower tail-coverts, light yellowish-brown. Young with the basal three-fourths of the tail white.

Male, 32, 70. Female, 38, 84.

From Pennsylvania northward. Never seen far in the interior. Resident.

Falco fulvus, Bonap. Syn. p. 25.

Aquila Chrysaetos, Golden Eagle, Swains. & Rich. F. Bor. Amer. v. ii. p. 12.

Ring-tailed Eagle, Falco fulvus, Wils. Amer. Ornith. v. vii. p. 13.

Royal or Golden Eagle, Nutt. Man. v. i. p. 62.

Golden Eagle, Falco Chrysaetos, Aud. Ornith. Biog. v. ii. p. 464.

GENUS IV. HALIAETUS, Savigny. SEA-EAGLE

Bill rather short, very deep, compressed; upper mandible with the dorsal outline nearly straight at the base, beyond the cere decurved, the sides sloping, the edges nearly straight, with a slight obtuse process, and a shallow sinus close to the strong trigonal tip; lower mandible, with the dorsal outline slightly convex, the tip obliquely truncate. Head large, oblong, flattened above. Nostrils oblong, oblique, near the ridge. Neck of moderate length. Body very large. Feet rather short, very robust; tarsi roundish, covered anteriorly with the transverse scutella, posteriorly with large, laterally with small scales; toes robust, free, scutellate above; claws large, curved, rounded, flat beneath, acuminate. Plumage compact, imbricated; feathers of the head and neck narrow and pointed; space between the bill and eye barish, being sparsely covered with bristle-like feathers, disposed in a radiating manner. Wings long, the second and third quills longest, the outer five cut out abruptly on the inner web. Tail rather long, rounded. Duodenum convoluted.

13. 1. Haliaetus Washingtoni, Aud. Washington Sea-Eagle

Plate XI. Male.

Tarsus and toes uniformly scutellate in their whole length. Bill bluish-black, cere yellowish-brown, feet orange-yellow, claws bluish-black. Upper part of the head, hind neck, back, scapulars, rump, tail-coverts, and posterior tibial feathers blackish-brown, glossed with a coppery tint; throat, fore-neck, breast, and belly light brownish-yellow, each feather with a central blackish-brown streak; wing-coverts light greyish-brown, those next the body becoming darker; primary quills dark brown, deeper on their inner webs; secondaries lighter, and on their outer webs of nearly the same light tint as their coverts; tail uniform dark brown.

Male, 43, 122.

From Louisiana northward. Exceedingly rare. The specimen figured procured in Kentucky. One seen in Labrador.

Bird of Washington, Falco Washingtonii, Aud. Orn. Biog. v. i. p. 58.

14. 2. Haliaetus leucocephalus, Linn. White-headed Sea-Eagle. – Bald Eagle

Plate XXXI. Adult Male. Plate CXXVI. Young.

Male. Tarsus with a few scutella; toes terminally scutellate. Male with the bill, cere, iris, and feet yellow; the head, the neck for half its length, the rump, upper and lower tail-coverts, and tail white; the rest of the plumage chocolate-brown, the terminal margins of all the feathers pale greyish-brown. Female similar. Young with the bill brownish-black, iris dark brown, feet yellow; the general colour of the plumage very dark chocolate, uniform, the feathers without edgings, all white at the base, that colour appearing more or less on the hind part, and more especially on the fore part and sides of the neck, and on the sides of the body and lower wing-coverts; quills and tail-feathers brownish-black, tinged with grey toward the base; the latter with the greater part of the inner webs, and a portion of the outer brownish-white, freckled with dusky. In more advanced stages the colours of the plumage vary considerably in different individuals. The general tint continues brown for several years, a variable and often a large proportion of white, or brownish-white, appearing on the neck, the lower part of the body, the sides, and under the wings, the tail meanwhile gradually becoming white in freckled patches, some have a large patch of brownish-white across the breast. When the feathers are new, they are of a glossy deep brown, but when old and worn they present a bleached appearance, and the upper parts are often patched with pale brown or brownish-white. On account of these circumstances, individuals of different ages, and shot at different periods of the year, differ so much from each other in appearance, that one might, without a very extended comparison, conceive that in a collection of specimens, there might be several species. The bill remains dark until the head and tail become white; the anterior tarsal scutella differ from none to six, the posterior from nine to twelve; those on the hind toe are four, on the middle toe from nine to thirteen.

Male, 34, 84.

Throughout North America. Resident in the south and west.

Bald Eagle, Falco Haliaetus, Wils. Amer. Ornith. v. iv. p. 89. Adult.

Sea Eagle, Falco ossifragus, Wils. Amer. Ornith. v. vii. p. 16. Young.

Falco leucocephalus, Bonap. Synops. p. 26.

Aquila leucocephala, White-headed Eagle, Swains. & Rich. F. Bor Amer. v. ii. p. 15.

White-headed or Bald Eagle, Falco leucocephalus, Nutt. Man. v. i. p. 72.

White-headed Eagle, Falco leucocephalus, Aud. Ornith. Biog. v. i. p. 160, v. ii. p. 160, v. v. p. 354.

GENUS V. PANDION, Sav. OSPREY

Bill short, as broad as deep at the base, the sides convex, the dorsal outline straight at the base, decurved towards the end; upper mandible with a festoon on the edges at the curvature, the tip trigonal, very acute; lower mandible with the edges slightly arched, the tip obtusely truncate. Nostrils oval, oblique, large, half-way between the ridge and the cere. Legs rather long; tarsus very short, remarkably thick, covered all round with hexagonal scales; toes also remarkably thick, the outer versatile larger than the inner, all scutellate only towards the end, and covered beneath with prominent, conical, acuminate scales; claws long, curved, convex beneath, tapering to a fine point. Plumage compact, imbricated; feathers of the head and neck narrow, acuminate; of the tarsus short and very narrow, without the elongated external tufts seen in all the other genera. Tail rather long, a little rounded. Intestine extremely long and slender, its greatest width 21/4 twelfths, the smallest 1/2 twelfth.

15. 1. Pandion Haliaetus. Common Osprey. – Fish Hawk. Fishing Eagle

Plate LXXXI. Adult male.

Bill bluish-black, cere light blue, feet pale greyish-blue tinged anteriorly with yellow. General colour of upper parts deep umber-brown, the tail barred with whitish on the inner webs; the upper part of the head and neck white, the middle part of the crown dark brown; a broad band of the latter colour from the bill down the side of the neck; lower parts white, the neck streaked with light brown; anterior tibial feather tinged with brown. Young with the feathers of the upper parts broadly tipped with brownish-white, the lower pure white.

Male, 23, 54. Female, 251/2, 58.

From Texas northward, and throughout the interior, as well as along the north-west coast. Resident in the south.

Fish Hawk, Falco Haliaetus, Wils. Amer. Orn. v. v. p. 13.

Falco Haliaetus, Bonap. Syn. p. 26.

Fish Hawk or Osprey, Falco Haliaetus, Aud. Orn. Biog. v. i. p. 415, v. v. p. 362.

GENUS VI. ELANUS, Sav. ELANUS

Bill short, small, very wide at the base, much compressed toward the end; upper mandible with the dorsal line convex and declinate to the end of the cere, then decurved, the sides slightly convex, the tip narrow and acute, the edges with a distinct festoon, lower mandible with the angle very wide and long, the dorsal line very short, and slightly convex, the tip obliquely truncate, and narrow. Nostrils elliptical, rather large, about half-way between the cere and ridge. Head rather large, broad, flattened above; neck short; body compact. Legs rather short; tarsus very short, stout, roundish, feathered anteriorly for half its length, the rest covered with small roundish scales; toes short, thick, scaly, with a few terminal scutella; claws long, curved, conical, rounded beneath, acute. Plumage very soft, and rather blended. Wings very long and pointed, the second quill longest. Tail of moderate breadth, long, emarginate, and rounded.

16. 1. Elanus dispar, Temm. Black-shouldered Elanus

Plate CCCLII. Male and Female.

Ash-grey above; head, tail, and lower parts white, with a large bluish-black patch on the wing above, and a smaller beneath; feet orange-yellow. Young with the upper parts brownish-grey, the larger feathers tipped with white, the patches on the wings brownish-black.

Male, 14, 40. Female, 163/4, 411/2.

From Texas to North Carolina. Rare. Never far inland. Migrates southward.

Black-winged Hawk, Falco melanopterus, Bonap. Amer. Orn. v. ii.

Falco melanopterus, Bonap. Syn. p. 31. Falco dispar, App. p. 435.

Black-shouldered Hawk, Falco dispar, Aud. Amer. Orn. v. iv. p. 397.

GENUS VII. ICTINIA, Vieillot. ICTINIA

Bill very short, wide at the base, much compressed toward the end; upper mandible with the dorsal line decurved in its whole length, the sides slightly convex, the tip narrow and acute, the edges with an obtuse lobe; lower mandible with the angle very wide, the dorsal line ascending and convex, the tip rather broad and obliquely truncate. Nostrils round, lateral, with a central papilla. Head rather large, roundish, broad, flattened; neck short, body compact. Legs rather short; tarsus stout, covered anteriorly with scutella; toes scutellate above, scabrous beneath, with pointed papillæ; claws rather long, curved, acuminate, flattened beneath. Plumage rather compact. Wings very long, the third quill longest. Tail long, emarginate.

This genus is easily distinguished from Elanus; the tarsi and toes being scutellate in this, and scaly in that; and the festoon on the upper mandible is much more prominent in Ictinia, while the nostrils, instead of being elliptical, are round, as in the Falcons.

17. 1. Ictinia plumbea, Gmel. Mississippi Ictinia. – Mississippi Kite

Plate CXVII. Male and Female.

Head, secondary quills, and lower parts light ash-grey; back and wing coverts dark leaden-grey; primaries black, margined externally with deep red; tail bluish-black; scutella dark purplish-red.

Male, 14, 36. Female, 15.

From Texas, where it is abundant, to North Carolina; up the Mississippi to Natchez. Migratory.

Mississippi Kite, Falco Mississippiensis, Wils. Amer. Orn. v. iii. p. 80.

Falco plumbeus, Bonap. Syn. p. 90.

Mississippi Kite, Falco plumbeus, Aud. Orn. Biog. v. ii. p. 108, v. v. p. 374.

GENUS VIII. NAUCLERUS, Vig. SWALLOW-TAILED-HAWK

Bill short, wide at the base, much compressed toward the end; upper mandible with the dorsal line decurved from the base, the sides slightly convex, the edges with a slight festoon, the tip narrow and acute; lower mandible with the angle very wide, the dorsal line straightish, the tip rounded and declinate. Nostrils round, with a central papilla. Head rather large, roundish, flattened; neck short; body compact. Feet short; tarsus very short, thick, scaly all round; toes scutellate above, scabrous beneath, with pointed papillæ; claws rather long, curved, acuminate. Plumage blended, glossy. Wings extremely long, pointed, the third quill longest; secondaries short. Tail extremely long, very deeply forked.

18. 1. Nauclerus furcatus, Linn. Common Swallow-tailed Hawk

Plate LXXII. Male.

Head, neck all round, and lower parts white; back, wings, and tail black, glossed with blue and purple; feet light blue, tinged with green; claws flesh-coloured.

Male, 22, 47. Female, 25, 511/2.

From Texas to North Carolina. Rather abundant. Up the Mississippi and Ohio to Louisville. Accidental in Pennsylvania. Migratory.

Swallow-tailed Hawk, Falco furcatus, Wils. Amer. Orn. v. vi. p. 70.

Falco furcatus, Bonap. Syn. p. 31.

Swallow-tailed Hawk, Falco furcatus, Aud. Orn. Biog. v. i. p. 368. v. v. p. 371.

GENUS IX. FALCO, Linn. FALCON

Bill short, robust; its upper outline decurved from the base; cere short, bare; edge of upper mandible with a festoon and a prominent angular process. Nostrils round, with an internal ridge, ending in a central tubercle. Feet strong; tarsi moderate, reticulate; toes long, broadly scutellate, the anterior webbed at the base; claws long, well curved, very acute. Wings long, pointed; second quill longest, first and third nearly equal; outer toe abruptly cut out on the inner web. Tail rather long, nearly even.

19. 1. Falco Islandicus, Lath. Iceland or Jer Falcon – Gyr Falcon. Labrador Falcon

Plate CCCLXVI. Adult Female. Plate CXCVI. Young Male and Female.

Tooth-like process of the bill generally obsolete in old, festoon slight in young birds; tail from three to four inches longer than the wings. Adult white, with slate-grey sagittate spots above, the bill pale blue, the cere and feet yellow. Younger birds light grey, the feathers white on the edges; the bill and cere light blue, the feet greyish-blue. Young brownish-grey above, the feathers margined and spotted with reddish-white, the lower parts yellowish-white, longitudinally streaked with dusky.

Male, 221/2, 49. Female, 231/2, 511/4.

Breeds in the extreme north, and in Labrador. In winter, migrates southward as far as Maine.

Falco Islandicus, Jer Falcon, Rich. & Swains. F. Bor. Amer. v. ii. p. 27.

Gyr Falcon, Falco Islandicus, Nutt. Man. v. i. p. 51.

Iceland or Jer Falcon, Falco Islandicus, Aud. Orn. Biog. v. iv. p. 466. Adult Female.

Iceland or Jer Falcon, Falco Islandicus, Aud. Orn. Biog. v. ii. p. 552. Young Male and Female.

20. 2. Falco peregrinus, Gmel. Peregrine Falcon. – Large-footed Hawk. Duck Hawk. Wandering Falcon

Plate XVI. Adult Male and Female.

Wings, when closed, of nearly the same length as the tail. Adult male with the upper parts greyish-black, excepting the head and hind neck barred with light greyish-blue, lower parts white, the breast and sides transversely spotted with black. Female with the upper parts darker than those of the male, the lower yellowish or reddish-white, with larger dusky spots on the breast and sides, and oblong streaks on the neck. Young blackish-brown above, the breast of the male yellowish-white, of the female pale yellowish-red, with broad longitudinal dusky streaks. In all stages, a large mystachial patch, black in adult, brown in young birds.

Male, 161/2, 30. Female, 191/2, 36.

Breeds in the northern parts, visiting the southern and western in winter as far as Texas.

Great-footed Hawk, Wils. Amer. Orn. v. ix. p. 120.

Falco peregrinus, Bonap. Synops. p. 27.

Common or Wandering Falcon, Falco peregrinus, Nuttall, Man. v. i. p. 53.

Great-footed Hawk, Falco peregrinus, Aud. Amer. Orn. v. i. p. 85; v. v. p. 365.

Falco peregrinus, Peregrine Falcon, Swains. & Rich. F. Bor. Amer. v. ii. p. 23.

21. 3. Falco columbarius, Linn. Pigeon Falcon. – Pigeon Hawk

Plate LXXV. Young Male and Female. Plate XCII. Adult Male.

Wings from two to three inches shorter than the tail, on the middle feathers of which are five, on the lateral six broad whitish bands. Adult male with the cere greenish-yellow, the feet pale orange, the upper parts light bluish-grey, each feather with a black central line; lower parts reddish or yellowish white, the breast and sides with large oblong brown spots; tibial feathers light red, streaked with blackish-brown. Female with the cere and legs greenish-yellow, the upper parts dark greyish-brown, the lower pale red, spotted as in the male. Young with the head light reddish-brown, streaked with dusky, the upper parts brownish-grey, the feathers margined and spotted with pale red, throat white, lower parts pale red, streaked with brown. The tail-bands vary from pale red to white.

This species is so nearly allied to Falco Æsalon, that it is extremely difficult to distinguish many individuals. The number and form of the scutella differ; but the most certain distinctive character is found in the light-coloured bands of the tail, which are more numerous in the Merlin, there being seven on its middle, and nine on its lateral tail-feathers.

Male, 103/4, 27. Female, 14, 30.

From Texas northward. Breeds in the Labrador and Arctic regions. Abundant. Migratory.

Pigeon Hawk, Falco columbarius, Wils. Amer. Orn. v. ii. p. 107.

Falco columbarius, Bonap. Syn. p. 38.

Pigeon Hawk, Falco columbarius, Nutt. Man. v. i. p. 60.

Little Corporal Hawk, Falco temerarius, Nutt. Man. v. i. p. 61. Adult Male.

Falco columbarius, Pigeon Hawk, Swains. & Rich. F. Bor. Amer. v. ii. p. 35.

Falco Æsalon, Merlin, Swains. & Rich. F. Bor. Amer. v. ii. p. 37.

Pigeon Hawk, Falco columbarius, Aud. Orn. Biog. v. i. p. 466; Young, v. i. p. 381, Male; v. v. p. 368.

22. 4. Falco sparverius, Linn. Sparrow Falcon. – Sparrow Hawk

Plate CXLII. Male and Female.

Male with the upper part of the head and wing-coverts light greyish-blue, seven black spots round the head, and a light red patch on the crown; back light red, spotted with black; tail red, with a broad subterminal black band. Female with the head nearly as in the male, the back, wing-coverts, and tail, banded with light red and dusky. Young similar to the female, but with more red on the head, which is streaked with dusky.

Male, 12. Female, 12.

Generally distributed. Resident in the south. Abundant.

American Sparrow-Hawk, Falco sparverius, Wils. Amer. Orn. v. ii. p. 117.

Falco sparverius, Bonap. Syn. p. 27.

American sparrow-hawk, Falco sparverius, Nutt. Man. v. i. p. 58.

Falco sparverius, Little Rusty-crowned Falcon, Swains. & Rich. F. Bor. Amer. v. ii. p. 31.

American Sparrow-Hawk, Falco sparverius, Aud. Orn. Biog. v. ii. p. 246; v. v. p. 370.

GENUS X. ASTUR, Cuv. HAWK

Bill short, robust; its upper outline sloping, and nearly straight at the base, then decurved; cere short, bare above; edge of upper mandible with a festoon, succeeded by a broad sinus. Nostrils elliptical. Feet of moderate length; tarsi moderate or slender, feathered at least one-third of their length, broadly scutellate before and behind; first and second toes strongest and equal, third much longer, and connected at the base by a web with the third, which is shortest; claws long, well curved, acuminate. Wings very broad, of moderate length, much rounded, fourth and fifth quills longest, first much shorter, outer four abruptly cut out on the inner web. Tail long, much exceeding the wings, rounded.

Those of more slender form, with proportionally longer tails and tarsi, are separated by many authors to form a group, to which the name of Accipiter and Nisus are given.

23. 1. Astur palumbarius, Linn. Gos Hawk

Plate CXLI. Fig. 1. Adult Male. Fig. 2. Young.

Adult male dark bluish-grey above, the tail with four broad bands of blackish-brown, the upper part of the head greyish-black; a white band, with black lines, over the eyes; lower parts white, narrowly barred with grey, and longitudinally streaked with dark brown. Young brown above, the feathers edged with reddish-white, the head and hind neck pale red, streaked with blackish-brown, the lower parts yellowish-white, with oblong longitudinal dark brown spots.

Male, 24, 47.

From Maryland, northward. From Kentucky, northward. Migratory.

Ash-coloured or Black-capped Hawk, Falco atricapillus, Wils. Amer. Ornith. v. vi. p. 80.

Falco palumbarius, Bonap. Syn. p. 28.

American Goshawk, Falco atricapillus, Nutt. Man. v. i. p. 85.

Accipiter (Astur) Palumbarius, Swains. & Rich. F. Bor. Amer. v. ii. p. 39.

Goshawk, Falco palumbarius, Aud. Orn. Biog. v. ii. p. 241.

24. 2. Astur Cooperi, Bonap. Cooper's Hawk

Plate CXLI. Fig. 3. Adult Male. Plate XXXVI. Young Male and Female.

Tail rounded, tarsi moderately stout. Adult male dull bluish-grey above; the tail with four broad bands of blackish-brown, and tipped with white; the upper part of the head greyish-black; lower parts transversely barred with light red and white, the throat white, longitudinally streaked. Female similar, with the bands on the breast broader. Young umber-brown above, more or less spotted with white, the tail with four blackish-brown bars; lower parts white, each feather with a longitudinal narrow, oblong, brown spot.

Male, 20, 36. Female, 22, 38.

From Louisiana northward, and all over the interior, in winter. Some breed in the United States. Columbia River.

Cooper's Hawk, Falco Cooperii. Bonap. Amer. Orn. Young.

Falco Cooperii, Bon. Syn. App. p. 433. Young.

Stanley Hawk, Falco Stanleii, Aud. Orn. Biog. v. ii. p. 245. Adult Male.

Stanley Hawk, Falco Stanleii, Aud. Orn. Biog. v. i. p. 186. Young.