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

Автор: Robert Ridgway
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met with these Sparrows, and obtained specimens of them, near San Antonio, on the 10th of April. Dr. Heermann, in his Report upon the birds observed in Lieutenant Williamson’s route between the 32d and 35th parallels, speaks of finding this species abundant.

      Dr. Gerhardt found this Sparrow not uncommon in the northern portions of Georgia, where it is resident throughout the year, and where a few remain in the summer to breed. Dr. Coues also states that a limited number summer in the vicinity of Columbia, S. C., but that their number is insignificant compared with those wintering there between October and April. They collect in large flocks on their arrival, and remain in companies of hundreds or more.

      Mr. Sumichrast states that it is a resident bird in the temperate region of Vera Cruz, Mexico, where it remains throughout the year, and breeds as freely and commonly as it does within the United States.

      Although found throughout the country in greater or less numbers, they are noticeably not common in the more recent settlements of the West, as on the unsettled prairies of Illinois and Iowa. Mr. Allen found them quite rare in both States, excepting only about the older settlements. As early as the first week in April, 1868, I noticed these birds very common and familiar in the streets of St. Louis, especially so in the business part of that city, along the wharves and near the grain-stores, seeking their food on the ground with a confidence and fearlessness quite unusual to it in such situations.

      The tameness and sociability of this bird surpass that of any of the birds I have ever met with in New England, and are only equalled by similar traits manifested by the Snowbird (J. hyemalis) in Pictou. Those that live about our dwellings in rural situations, and have been treated kindly, visit our doorsteps, and even enter the houses, with the greatest familiarity and trust. They will learn to distinguish their friends, alight at their feet, call for their accustomed food, and pick it up when thrown to them, without the slightest signs of fear. One pair which, summer after summer, had built their nest in a fir-tree near my door, became so accustomed to be fed that they would clamor for their food if they were any morning forgotten. One of these birds, the female, from coming down to the ground to be fed with crumbs, soon learned to take them on the flat branch of the fir near her nest, and at last to feed from my hand, and afterwards from that of other members of the family. Her mate, all the while, was comparatively shy and distrustful, and could not be induced to receive his food from us or to eat in our presence.

      This Sparrow is also quite social, keeping on good terms and delighting to associate with other species. Since the introduction of the European House Sparrow into Boston, I have repeatedly noticed it associating with them in the most friendly relations, feeding with them, flying up with them when disturbed, and imitating all their movements.

      The Chipping Sparrow has very slight claims to be regarded as one of our song-birds. Its note of complaint or uneasiness is a simple chip, and its song, at its best, is but a monotonous repetition of a single note, sounding like the rapid striking together of two small pebbles. In the bright days of June this unpretending ditty is kept up incessantly, hours at a time, with only rare intermissions.

      The nest of this bird is always in trees or bushes. I have in no instance known of its being built on the ground. Even at the Arctic regions, where so many of our tree-builders vary from this custom to nest on the ground, no exceptional cases are reported in regard to it, all its nests being upon trees or in bushes. These are somewhat rudely built, often so loosely that they may readily be seen through. Externally they are made of coarse stems of grasses and vegetable branches, and lined with the hair of the larger animals.

      These birds are devoted parents, and express great solicitude whenever their nests are approached or meddled with. They feed their young almost exclusively with the larvæ of insects, especially with young caterpillars. When in neighborhoods infested with the destructive canker-worm, they will feed their young with this pest in incredible numbers, and seek them from a considerable distance. Living in a district exempt from this scourge, yet but shortly removed from them, in the summer of 1869, I noticed one of these Sparrows with its mouth filled with something which inconvenienced it to carry. It alighted on the gravel walk to adjust its load, and passed on to its nest, leaving two canker-worms behind it, which, if not thus detected, would have introduced this nuisance into an orchard that had previously escaped, showing that though friends to those afflicted they are dangerous to their neighbors. This Sparrow is also the frequent nurse of the Cow Blackbird, rearing its young to the destruction of its own, and tending them with exemplary fidelity.

      Their eggs, five in number, are of an oblong-oval shape, and vary greatly in size. They are of a bluish-green color, and are sparingly spotted about the larger end with markings of umber, purple, and dark blackish-brown, intermingled with lighter shadings of faint purple. The largest specimen I have ever noticed of this egg, found in the Capitol Grounds, Washington, measures .80 by .58 of an inch; and the smallest, from Varrell’s Station, Ga., measures .60 by .50. Their average measurement is about .70 by .54. They are all much pointed at the smaller end.

Spizella socialis, var. arizonæ, CouesWESTERN CHIPPING SPARROW

      Spizella socialis, var. arizonæ, Coues, P. A. N. S. 1866.—Cooper, Orn. Cal. 1, 207.

      Sp. Char. Similar to socialis, but tail and wing longer, the bill narrower, and colors paler and grayer. Rufous of the crown lighter and less purplish, generally (always in specimens from southern Rocky Mountains) with fine black streaks on the posterior part. Ash of the cheeks paler, throwing the white of the superciliary stripe and throat into less contrast. Black streaks of the back narrower, and without the rufous along their edges, merely streaking a plain light brownish-gray ground-color. A strong ashy shade over the breast, not seen in socialis; wing-bands more purely white. Wing, 3.00; tail, 2.80; bill, .36 from forehead, by .18 deep. (40,813 ♂, April 24, Fort Whipple, Ariz., Dr. Coues.)

      Hab. Western United States from Rocky Mountains to the Pacific; south in winter into Middle and Western Mexico.

      All the specimens of a large series from Fort Whipple, Arizona, as well as most others from west of the Rocky Mountains to the Pacific coast, agree in the characters given above, as distinguished from eastern specimens of socialis. The variations with age and season are simple parallels of those in socialis.

      Habits. The references in the preceding article to the Chipping Sparrow as occurring in the Middle and Western Provinces of the United States, are to be understood as applying to the present race.

Spizella pallida, BonapCLAY-COLORED SPARROW

      Emberiza pallida, Sw. F. Bor.-Am. II, 1831, 251 (not of Audubon). Spizella pallida, Bonap. List, 1838.—Baird, Birds N. Am. 1858, 474. Spinites pallidus, Cabanis, Mus. Hein. 1851, 133. Emberiza shattucki, Aud. Birds Am. VII, 1843, 347, pl. ccccxciii. Spizella shattucki, Bonap. Conspectus, 1850, 480.

      Sp. Char. Smaller than S. socialis. Back and sides of hind neck ashy. Prevailing color above pale brownish-yellow, with a tinge of grayish. The feathers of back and crown streaked conspicuously with blackish. Crown with a median pale ashy and a lateral or superciliary ashy-white stripe. Beneath whitish, tinged with brown on the breast and sides, and an indistinct narrow brown streak on the edge of the chin, cutting off a light stripe above it. Ear-coverts brownish-yellow, margined above and below by dark brown, making three dark stripes on the face. Bill reddish, dusky towards tip. Legs yellow. Length, 4.75; wing, 2.55.

      Hab. Upper Missouri River and high central plains to the Saskatchewan country. Cape St. Lucas, Oaxaca, March (Scl. 1859, 379); Fort Mohave (Cooper, P. A. N. S. Cal. 1861, 122); San Antonio, Texas, spring (Dresser, Ibis, 1865, 489; common).

      The ashy collar is quite conspicuous, and streaked above with brown. The rump is immaculate. The streaks on the feathers of the crown almost form continuous lines, about six in number. The brown line above the ear-coverts is a post-ocular one. That on the side of the chin forms the lower border of a white maxillary stripe which widens and curves around behind the ear-coverts, fading into the ashy of the neck. The wing-feathers are all margined with paler, and there is an indication of two light bands across the ends of the coverts.

      The young of this species is thickly streaked beneath over the throat, breast, and belly, with brown, giving to it an