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, Nutt. I, (2d ed.,) 1840, 568. “Summer finch, Latham, Synopsis, (2d ed.,) VI, 136.” Nuttall.
Peucæa æstivalis.
Sp. Char. All the feathers of the upper parts rather dark brownish-red or chestnut, margined with bluish-ash, which almost forms a median stripe on the crown. Interscapular region and upper tail-coverts with the feathers becoming black in the centre. An indistinct ashy superciliary stripe. Under parts pale yellow-brownish, tinged with ashy on the sides, and with darker brownish across the upper part of the breast. A faint maxillary dusky line. Indistinct streaks of chestnut along the sides. Edge of wing yellow; lesser coverts tinged with greenish. Innermost secondaries abruptly margined with narrow whitish. Legs yellow. Bill above dusky, yellowish beneath. Outer tail-feathers obsoletely marked with a long blotch of paler at end. Female considerably smaller. Young with rounded dusky specks on the jugulum, which is more ochraceous. Length, 6.25; wing, 2.30; tail, 2.78.
Hab. Georgia; Florida; South Illinois, breeding (Ridgway). (Perhaps whole of Southern States from Florida to South Illinois.)
Specimens from Southern Illinois (Wabash Co., July, 1871; coll. of R. Ridgway) are similar to Florida examples.
Habits. Bachman’s Finch has only been known, until very recently, as a species of a very restricted range, and confined within the limits of the States of South Carolina, Georgia, and Florida. Our principal, and for some time our only, knowledge of its habits was derived from the account furnished by Rev. Dr. Bachman to Mr. Audubon. That observing naturalist first met with it in the month of April, 1832, near Parker’s Ferry, on the Edisto River, in South Carolina. Dr. Henry Bryant afterwards met with this species at Indian River, in Florida, where he obtained specimens of its nests and eggs. Dr. Alexander Gerhardt also found these Sparrows common at Varnell’s Station, in the northern part of Georgia. Professor Joseph Leconte has taken it near Savannah, and Mr. W. L. Jones has also obtained several specimens in Liberty County, in the same State.
After meeting with this species on the Edisto, Dr. Bachman ascertained, upon searching for them in the vicinity of Charlestown, that they breed in small numbers on the pine barrens, about six miles north of that city. He was of the opinion that it is by no means so rare in that State as has been supposed, but that it is more often heard than seen. When he first heard it, the notes so closely resembled those of the Towhee Bunting that for a while he mistook them for those of that bird. Their greater softness and some slight variations at last induced him to suspect that the bird was something different, and led him to go in pursuit. After that it was quite a common thing for him to hear as many as five or six in the course of a morning’s ride, but he found it almost impossible to get even a sight of the bird. This is owing, not so much to its being so wild, as to the habit it has of darting from the tall pine-trees, on which it usually sits to warble out its melodious notes, and concealing itself in the tall broom-grass that is almost invariably found in the places it frequents. As soon as it alights it runs off, in the manner of a mouse, and hides itself in the grass, and it is extremely difficult to get a sight of it afterwards.
It was supposed by Dr. Bachman—correctly, as it has been ascertained—to breed on the ground, where it is always to be found when it is not singing. He never met with its nest. In June, 1853, he observed two pairs of these birds, each having four young. They were pretty well fledged, and were following their parents along the low scrub-oaks of the pine lands.
Dr. Bachman regarded this bird as decidedly the finest songster of the Sparrow family with which he was acquainted. Its notes are described as very loud for the size of the bird, and capable of being heard at a considerable distance in the pine woods where it occurs, and where at that season it is the only singer.
He also states that, by the middle of November, they have all disappeared, probably migrating farther south. It is quite probable that they do not go beyond the limits of the United States, and that some remain in South Carolina during the whole of winter, as on the 6th of February, the coldest part of the year, Dr. Bachman found one of them in the long grass near Charleston.
Mr. Audubon says that on his return from Florida, in June, 1832, travelling through both the Carolinas, he observed many of these Finches on the sides of the roads cut through the pine woods of South Carolina. They filled the air with their melodies. He traced them as far as the boundary line of North Carolina, but saw none within the limits of that State. They were particularly abundant about the Great Santee River.
This Finch, hitherto assumed to be an exclusively southeastern species, has recently been detected by Mr. Ridgway in Southern Illinois, where it is a summer resident, and where it breeds, but is not abundant. It inhabits old fields, where, perched upon a fence-stake or an old dead tree, it is described as chanting a very delightful song. It was first taken on the 12th of July, 1871, on the road about half-way between Mount Carmel and Olney. The bird was then seen on a fence, and its unfamiliar appearance and fine song at once attracted his notice as he was riding by. As several were heard singing in the same neighborhood, it seemed common in that locality, and as a young bird was taken in its first plumage there is no doubt that it is a regular summer visitant of Southern Illinois, and breeds there. Mr. Ridgway speaks of its song as one of the finest he has ever heard, most resembling the sweet chant of the Field Sparrow, but is stronger, and varied by a clear, high, and very musical strain. He describes its song as resembling the syllables thééééééé-til-lūt, lūt-lūt, the first being a very fine trill pitched in a very high musical key, the last syllable abrupt and metallic in tone.
The food of this species, Dr. Bachman states, consists of the seeds of grasses, and also of coleopterous insects,