FISH-HAWK; AMERICAN OSPREY.

_Falco carolinensis_, GMEL. Syst. Nat. p. 263, 1789.—DAUD. Tr. Orn.

II, 69, 1800. _Pandion carolinensis_, BONAP. List, pt. iii, 1838;

Consp. Av. p. 16.—STRICKL. Orn. Syn. I, 64, 1855.—AUD. Birds Am. pl.

lxxxi, 1831.—CASS. Birds Cal. & Tex. p. 112, 1854.—BREWER, Oölogy,

1857, p. 53, pl. iii, fig. 33, 34.—NEWB. P. R. R. Rept. VI, iv,

75, 1857.—HEERM. VII, 21, 1857.—DE KAY, Zoöl. N. Y. II, 8, pl. vi,

fig. 18.—CASS. Birds N. Am. 1858, p. 44.—COOP. & SUCK. P. R. R.

Rept. XII, ii, 153, 1860.—COUES, Prod. Orn. Ariz. 1866, p. 13.—GRAY,

Hand List, I, 15, 1869.—MAX. Cab. Journ. VI, 1858, 11.—LORD, Pr.

R. A. I. IV, 1864, 110 (Brit. Columb.; nesting).—FOWLER, Am. Nat.

II, 1868, 192 (habits). _Falco cayennensis_, GMEL. Syst. Nat. p.

263, 1789.—DAUD. Tr. Orn. II, p. 69, 1800. _Falco americanus_, GMEL.

Syst. Nat. p. 257.—LATH. Index Orn. p. 13, 1790; Syn. I, 35, 1781;

Gen. Hist. I, 238, 1821.—DAUD. Tr. Orn. II, 50.—SHAW, Zoöl. VII, 88.

_Aquila americana_, VIEILL. Ois. Am. Sept. I, pl. iv, 1807. _Pandion

americanus_, VIEILL. Gal. Ois. pl. ii, 1825.—VIG. Zoöl. Journ. I,

336.—SWAINS. Classif. B. II, 207, 1837. _Aquila piscatrix_, VIEILL.

Ois. Am. Sept. I, pl. iv, 1807. _Accipiter piscatorius_, CATESBY,

Carolina, I, pl. ii, 1754. _A. falco piscator antillarum_, BRISS. Orn.

I, 361, 1760. _A. falco piscator carolinensis_, BRISS. Orn. I, 362.

_Pandion haliætus_, RICH. Faun. Bor. Am. II, 20, 1831.—JARD. (WILS.)

Am. Orn. II, 103, 1832.—JAMES. (WILS.) Am. Orn. I, 38, 1831.—AUD.

Orn. Biog. I, 415, 1831.—GRAY, List B. Brit. Mus. p. 22, 1844. _?

Pandion fasciatus_, BREHM, Allgem. deutsch. Zeitung, II, 1856, 66 (St.

Domingo).

SP. CHAR. _Adult male_ (17.227, San José, Lower California, December

15, 1859; J. Xantus). Upper surface dark vandyke-brown, with a faint

purplish cast; quills black. Every feather with a conspicuous, sharply

defined terminal crescent of pure white. Tail brownish-drab, narrowly

tipped with white, and crossed with seven (one concealed) regular

bands of dusky; inner webs almost wholly white, the black bands

sharply defined and continuous; shafts entirely white. Ground-color

of the head, neck, and entire lower parts, pure white; a broad stripe

from the eye back across upper edge of the ear-coverts to the occiput

brownish-black; white head also sparsely streaked with blackish, these

streaks suffusing and predominating medially; nape faintly tinged with

ochraceous, and sparsely streaked. Breast with large cordate spots of

brown, fainter than that of the back, a medial spot on each feather,

the shaft black; rest of lower parts immaculate. Lining of the wing

white, strongly tinged with ochraceous; the brown of the outer surface

encroaching broadly over the edge. Under primary-coverts with broad

transverse spots or bars; under surface of primaries grayish-white

anterior to the emargination irregularly mottled with grayish; axillars

immaculate. Wing-formula, 2=3, 4–1, 5. Wing, 20.00; tail, 8.80;

culmen, 1.35; tarsus, 2.15–1.10; middle toe, 1.90; outer, 1.75; inner,

1.40; posterior, 1.15; posterior outer and inner claws of equal

length, each measuring 1.20 (chord); middle, 1.15. “Iris yellow; feet

greenish-yellow.”

_Adult female_ (290, S. F. Baird’s Collection, Carlisle, Pa., April

17, 1841). Dark brown of the upper surface entirely uniform, there

being none of the sharply defined white crescents so conspicuous in

the male.[70] Tail brown to its tip, the dusky bands obscure, except

on inner webs. On the top of the head, the dusky is more confined to a

medial stripe. Pectoral spots smaller, less conspicuous. Under surface

of primaries more mottled with grayish. Wing-formula, 3, 2–4–1, 5. Wing,

20.50; tail, 9.15; culmen, 1.35; tarsus, 2.15; middle toe, 1.70.

[Illustration:

=12013=, ♂. ½

=12013=, ♂. ½

=17227=, ♂. ¼

_Pandion carolinensis._]

HAB. Whole of North America, south to Panama; N. Brazil; Trinidad, Cuba,

and other West India Islands.

Localities: Belize (SCL. Ibis, I, 215); Cuba (CAB. Journ. II, lxxx,

nests; GUNDL. Repert. Sept. 1865, 1, 222); Bahamas (BRYANT, Pr. Bost.

Soc. VII, 1859); Panama (LAWR. VIII, 63); Trinidad (TAYLOR, Ibis, 1866,

79); Arizona (COUES, Pr. A. N. S. 1866, 49); N. Brazil (PELZ. Orn. Bras.

I, 4).

In eight out of twelve North American adult specimens, there is but the

slightest amount of spotting on the breast; in two of these (4,366,

Puget Sound, and 12,014, Oregon), none whatever; in 17,228 (♂, Cape St.

Lucas), 2,512 (♂ S. F. B. Carlisle, Pa.), 34,065 (♀, Realejo, Central

America), and 5,837 (Fort Steilacoom), there is just a trace of these

spots.

The specimens described are those having the breast most distinctly

spotted. Specimens vary, in length of wing, from 17.50 to 20.50. There

appears to be no sexual difference in size.

The distinctness or identity of the European and North American Ospreys

can only be determined by the comparison of a very large series; this we

have not been able to do, and although it is our belief that they should

not be separated, the impressions received from a close inspection of

the specimens before us (twenty-seven American and eighteen European)

seem to indicate the propriety of distinguishing them as races.

The male of the pair described appears to be perfectly identical, in all

respects except size, with a very perfect, finely mounted European male;

indeed, the only discrepancy is in the size, the wing of the European

bird being only nineteen inches, instead of twenty inches as in the

American. The female, however, differs from European females in having

the brown on the breast in the form of detached faint spots, instead of

a continuous grayish-brown wash, more or less continuous.

The types of our descriptions are the only specimens of the American

series which show even an approach to the amount of spotting on the

breast constant in birds from Europe.

The American bird, as indicated by the series before us, would seem to

be rather the larger; for the European specimens measure uniformly about

an inch less than the American in length of the wing.

In all the American specimens, of both sexes, the shafts of the

tail-feathers are continuously white, while in the European they are

clear white only at the roots or for the basal half.

While, in consideration of the above facts, I am for the present

compelled to recognize the American _Pandion_ under the distinctive name

of _carolinensis_, I may say, that, if any European birds occur with the

breast immaculate,—no matter what the proportion of specimens,—I shall

at once waive all claims to distinctness for the American bird.

A History of North American Birds; Land Birds; Vol. 3 of 3 · 第 104 / 607 题