A History of North American Birds, Land Birds. Volume 2. Robert Ridgway. Читать онлайн. Newlib. NEWLIB.NET

Автор: Robert Ridgway
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name is the one to be applied to the variety diagnosed in the synopsis; it is difficult, however, to make anything out of the description, as it is evidently taken from a female or immature bird. If the locality quoted be correct, this form ranges along the Pacific Coast, probably from latitude 20° south, as far at least as Nicaragua. North of 20°, and on the Tres Marias Islands, it is replaced by var. igneus, and on the Atlantic coast, from Tampico south to Honduras, is represented by the var. coccineus.

In the very long, stiff crest-feathers, and light red rump, this variety of C. virginianus closely approximates to C. phœniceus, but in other respects is very distinct.

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Cardinalis phœniceus, (Gould,) Bonap. P. Z. S. 1837, p. 111; Consp. I, 501.—Sclater & Salvin, Ex. Orn. Pt. VIII, 1868, pl. lxiii.

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Pipilo macronyx, Swainson, Phil. Mag. I, 1827, 434. Real del Monte, Mex.—Ib. Anim. in Men. 1838, 347.—Bp. Consp. 487.—Sclater & Salvin, 1869, 361. Pipilo virescens, Hartlaub, Cab. Jour. 1863, 228, Mex.

Sp. Char. Prevailing color above olive-green; the head and neck all round black, abruptly contrasted below with the white under parts; above passing insensibly into the green of the back; feathers of interscapular region obscurely dusky medially; sides and crissum rufous. Scapulars and greater and middle coverts with outer webs pale greenish-yellow at ends; these blotches faintly margined externally with olive-green. Edge of wing yellow; outer primary edged with whitish, edges of other primaries and of secondaries uniform olive-green. Fifth quill longest, fourth and sixth scarcely shorter; first shorter than ninth. Legs stout, claws much curved. Tail wanting in the single specimen before us (a male from the city of Mexico, belonging to Mr. G. N. Lawrence).

Dimensions (prepared specimen): Wing, 3.70. Exposed portion of first primary, 2.30; of second, 2.73; of longest (measured from exposed base of first primary), 2.85. Bill: Length from forehead, .75; from nostril, .45. Legs: Tarsus, 1.14; middle claw, .38; hind toe and claw, .85; claw alone, .52.

In describing this species, Swainson mentions an accompanying specimen as similar, but without any white spots on wings, suggesting that it may be the female. A specimen in the plumage from Oaxaca is characterized as follows.

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Pipilo chlorosoma, Baird. 50,225 ♂, Oaxaca. Similar to P. macronyx in color, but without any trace of white markings on the wings. Outer tail-feathers with an obscurely defined greenish-white patch about an inch long, at the end of inner web; similar, but successively smaller patches on the second and third feathers, all whiter on upper than lower surface. Fifth quill longest; first shorter than ninth.

Dimensions (prepared specimen): Total length, 8.20; wing, 3.75; tail, 4.80. Bill: Length from forehead, .73; from nostril, .43. Legs: Tarsus, 1.24; middle toe and claw, 1.10; claw alone, .36; hind toe and claw, .85; claw alone, .50. No. 60,050, Mexico, is similar, in all essential respects.

From the analogies of the black Pipilos, it is reasonable to consider these two birds as distinct species, or at least varieties, especially as the specimen before us of that with unspotted wings is marked male. The general appearance is otherwise much the same, the unspotted bird rather smaller, and without the dusky interscapular markings described in macronyx. Should No. 50,225 represent a distinct species, it may be called P. chlorosoma, and distinguished as above. (60,050, Mexico, Boucard.)

20

Pipilo lateralis (Natt.). Emberiza lateralis, Natt. Mus. Vind. MSS. Poospiza lat. Burm. Th. Bras. III, Av. 2, p. 215. Pipilo superciliosa, Swains. An. Menag. 311, 95, fig. 59.

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Pipilo maculatus, Swainson, Philos. Mag., 1827.

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Pipilo carmani, Baird, MSS.; Lawrence, Ann. N. Y. Lyc. X, 7. (Specimens in collection made by Colonel A. J. Grayson.)

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Pipilo maculatus, Swainson. Sp. Char. Male. Similar to the female of Pipilo arcticus, but rather more olivaceous; only the head and neck all round black; shading above insensibly into the back. The white markings mostly edged narrowly externally with black, and clouded with rusty; the nape-feathers faintly, the interscapular broadly, streaked centrally with blackish; lower back and rump, with outer edges of quill and tail feathers, olivaceous-brown. A narrow shaft-streak in white at end of tail. Fourth quill longest; fifth scarcely shorter; first about equal to secondaries. Claws moderate; perhaps larger than in erythrophthalmus. Length of skin, 7.80; wing, 3.15; tail, 4.20; tarsus, 1.10; middle toe and claw, .96; claw alone, .34; hind toe and claw, .81; claw alone, .45. Hab. Mexico (Oaxaca; Real del Monte, Philos. Mag., 1827).

It is a serious question whether this comparatively little known Mexican species of Pipilo is not to be considered as identical with some or all of the species of the United States, with spotted wing-coverts, notwithstanding the difference in the color of the body. It appears, however, to be constant in the olivaceous character of the back,—no reference being made to Mexican specimens entirely black above,—and as such it may be considered a permanent geographical race.

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Pipilo fuscus, Sw. Phil. Mag. I, 1827, 434 (Temiscaltepec).—Ib. Anim. in Menag. 1838, 347.—Bp. Consp. 1851, 487.—Sclater, P. Z. S. 1856, 304 (Cordova). ? Kieneria fusca, Bp. C. R. XL, 1855, 356.

Sp. Char. Above dull olive-brown; the top of head having the central portion of feathers tinged (inconspicuously and obscurely) with rufous. Chin and throat pale rufous, bordered by dusky streaks; a single dusky spot in lower part of jugulum. Belly and flanks behind, anal region and crissum, rather darker rufous. Sides grayish-olive, lighter than the back, tingeing the breast, and leaving only a small patch in the centre of under parts white, shading into the surrounding ashy-brown. Fourth and fifth quills longest; first shorter than ninth, or than secondaries.

Dimensions (prepared specimen): Total length, 7.75; wing, 3.80; tail, 4.20; exposed portion of first primary, 2.30; of longest (measured from exposed base of first primary), 3.03. Bill: Length from forehead, .65; from nostril, .40. Legs: Tarsus, .95; middle toe and claw, 1.00; hind toe and claw, .68; claw alone, .36. Hab. Highlands of Mexico.

The specimen described is from the city of Mexico, and belongs to Mr. G. N. Lawrence; others before us are from Temiscaltepec (the original locality of Swainson’s type), Guadalaxara, and Tepic.

While admitting the strong probability that the different brown Pipilos with rufous throat bordered by black spots, P. fuscus, crissalis, mesoleucus, albigula, and probably even albicollis, are geographical modifications of the same original type, the large collection before us vindicates the action of those who have referred the California species to that described by Swainson as fuscus, and who have distinguished the P. mesoleucus from both. The original description of fuscus agrees almost exactly with crissalis, both actually scarcely separable; while the mesoleucus, intermediate in geographical position, is decidedly different from either. The relationships of these different forms will be found expressed in the general diagnosis already given.

Two descriptions given by Swainson, copied below, of the P. fuscus, differ somewhat from each other, and may not have been taken from the same specimen. The identification of either with P. mesoleucus would be a difficult matter; while the first one expresses the peculiar characters of crissalis more nearly than any other. The statement of “white beneath,” without any qualification, applies better to mesoleucus than to others, but the “pale rufous tinge” observable in crissalis and fuscus is very different from the abruptly defined chestnut cap of mesoleucus.

Pipilo fuscus, Swainson, Phil. Mag. I, 1827, 434. “Gray, beneath paler; throat obscure fulvous, with brown spots; vent ferruginous. Length, 8.00; bill, .70; wings, 3.50; tail, 4.00; tarsi, .90; hind toe and claw, .70.” Hab. Table land; Temiscaltepec.

Pipilo fuscus, Swainson, Anim. in Men. 1838, 347. “Grayish-brown above; beneath white; chin and throat fulvous, with dusky spots; under tail-coverts fulvous; tail blackish-brown, unspotted.