A History of North American Birds, Land Birds. Volume 2. Robert Ridgway
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Название: A History of North American Birds, Land Birds. Volume 2
Автор: Robert Ridgway
Издательство: Public Domain
Жанр: Биология
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Mr. Audubon met with them, during autumn and winter, among the flat sand-bars of the Mississippi, which are overgrown with rank grasses. Though not in flocks, their numbers were immense. They fed on grass-seeds and insects, often wading for the latter in shallow water in the manner of the Tringidæ, and when wounded and forced into the water swimming off to the nearest shelter. He also met with these birds abundantly dispersed in the swamps of Cuyaga Lake, as well as among those along the Illinois River in the summer, and in the winter up the Arkansas River.
Mr. Townsend observed these birds on the head-waters of the Upper Missouri, but did not meet with them beyond.
In Maine, Mr. Boardman gives it as a regular summer visitant at Calais, arriving there as early as March, becoming common in May, and breeding in that locality. Professor Verrill found it in Western Maine, a summer visitant and breeding, but did not regard it as common. From my own experience, in the neighborhood of Boston, I should have said the same as to its infrequency in Eastern Massachusetts, yet in certain localities it is a very abundant summer resident. Mr. William Brewster has found it breeding in large numbers in the marshes of Fresh Pond, where it arrives sometimes as early as the latter part of March, and where it remains until November. In the western part of the State it is more common as a migratory bird, and has not been found, in any numbers, stopping to breed. Mr. Allen never met with any later than May 25. They were observed to be in company with the Water Thrush, and to be in every way as aquatic in their habits. In the autumn he again met with it from the last of September through October, always in bushy marshes or wet places. Mr. McIlwraith states that in the vicinity of Hamilton, Ontario, it is a common summer resident, breeding there in marshy situations. At Lake Koskonong, in Wisconsin, Mr. Kumlien has also met with these birds abundantly in suitable localities, and found their nests and eggs quite plentiful.
Mr. Ridgway has recently found this Sparrow to be a very abundant winter resident in Southern Illinois, where it inhabits swampy thickets, and where it remains until May, but is not known to breed there.
They always nest on the ground, usually in a depression sheltered by a tuft of grass. The nest is woven of fine grass-stems, but is smaller than the nest of M. melodia.
The eggs of this species, usually five in number, have an average measurement of .78 by .60 of an inch. Their ground-color is usually a light green, occasionally of a light clay, marked and blotched with reddish and purplish brown spots, varying in size and number, occasionally forming a confluent ring around the larger end.
Peucæa, Aud. Synopsis, 1839. (Type, Fringilla æstivalis.) Sclater & Salvin, 1868, 322 (Synopsis.)
Peucæa æstivalis.
10245 ♂
Gen. Char. Bill moderate. Upper outline and commissure decidedly curved. Legs and feet with the claws small; the tarsus about equal to the middle toe; the lateral toes equal, their claws falling considerably short of the middle one; the hind toe reaching about to the middle of the latter. The outstretched feet reach rather beyond the middle of the tail. The wing is very short, reaching only to the base of the tail; the longest tertials do not exceed the secondaries, while both are not much short of the primaries; the outer three or four quills are graduated. The tail is considerably longer than the wings; it is much graduated laterally; the feathers, though long, are peculiarly narrow, linear, and elliptically rounded at the ends.
Color beneath plain whitish or brownish, with a more or less distinct dusky line each side of the chin. Above with broad obsolete brown streaks or blotches. Crown uniform, or the feathers edged with lighter.
Common Characters. A light superciliary stripe, with a brownish one below it from the eye along upper edge of ear-coverts (not one along lower edge of ear-coverts, as in Melospiza). A narrow blackish “bridle” along side of throat (sometimes indistinct). Crown without a distinct median stripe, and lower parts without markings. Ground-color above ashy, sometimes of a brownish cast; dorsal region and nape with brown blotches, with or without dark centres. Crown blackish-brown streaked with ashy or plain rufous. Beneath plain brownish-white, lightest on the abdomen, darker across jugulum and along sides.
A. Crown plain rufous; interscapulars without distinct black centres, and tertials without whitish border. Blackish “bridle” conspicuous. Bend of wing edged with white.
1. P. ruficeps.
Above olivaceous-ash, interscapulars with broad streaks of dull rufous, the shafts scarcely blackish. Crown bright rufous. Wing, 2.40; tail, 2.70; bill, .29 from forehead, .20 deep; tarsus, .70; middle toe without claw, .55. Hab. California (and Mexico in winter?) … var. ruficeps.
Darker, above brownish-plumbeous, dorsal streaks scarcely rufous, and with distinctly black shaft-streaks; crown darker rufous. Wing, 2.40; tail, 2.60; bill, .34 and .25; tarsus, .77; middle toe, .57. Hab. Mexico (Orizaba; Oaxaca), in summer … var. boucardi.7
B. Crown streaked; interscapulars with distinct black centres; tertials sharply bordered terminally with paler. “Bridle” obsolete; bend of wing edged with yellowish.
2. P. æstivalis. Above uniformly marked with broad streaks or longitudinal blotches of deep rufous; black streaks confined to interscapulars and crown. Tail-feathers without darker shaft-stripe, and without indications of darker bars; the outer feathers without distinct white. Black marks on upper tail-coverts inconspicuous, longitudinal.
The bluish-ash, and chestnut-rufous streaks above sharply contrasted; black dorsal streaks broad. Wing, 2.45; tail, 2.65; bill, .30 and .30; tarsus, .73; middle toe, .60. Hab. Southern States from Florida and Georgia to Southern Illinois … var. æstivalis.
The dull ash and light rufous streaks above not sharply defined; black dorsal streaks narrow. Wing, 2.65; tail, 3.00; bill, .32 and .25; tarsus, .80; middle toe, .63. Hab. Southern border of the Arizona region of Middle Province of United States … var. arizonæ.
Markings badly defined as in the last, but the rufous streaks darker (in summer plumage almost entirely black), with more black on the crown. Wing, 2.55; tail, 2.65; bill, .32 and .25; tarsus, .80; middle toe, .60. Hab. Mexico (Orizaba; Mirador, Colima) … var. botterii.8
3. P. cassini. Above marked everywhere with broad short streaks of pale (not reddish) brown streaks, all black medially. Tail-feathers with distinct blackish shaft-stripe, throwing off narrow, obsolete bars toward the edge of the feathers. Outer tail-feathers distinctly tipped (broadly) and edged with dull white. Black marks on upper tail-coverts very large, transverse. Beneath nearly uniform dull white, scarcely darker along sides and across breast; flanks with broad streaks of blackish-brown. Wing, 2.55; tail, 2.80; bill, .28 and .23; tarsus, .68; middle toe, .55. Hab. Rio Grande, region (San Antonio and Laredo), north to Kansas (Allen).
Fringilla æstivalis, Licht. Verz. Doubl. 1823, 25, No. 254.—Bonap. Conspectus, 1850, 481. Peucæa æstivalis, Cabanis, Mus. Hein. 1850, 132.—Baird, Birds N. Am. 1858, 484. Fringilla bachmani, Aud. Orn. Biog. II, 1834, 366, pl. clxv. Ammodromus bachmani, Bon. List, 1838. Peucæa bachmani, Aud. Syn. 1839.—Ib. Birds Am. III, 1841, 113, pl. clxxvi.—Bon. Consp. 1850, 481 (type). Fringilla æstiva, СКАЧАТЬ
This form can scarcely be defined separately from
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