GENUS SCOPS, SAVIGNY.

_Scops_, SAVIGNY, 1809. (Type, _Strix scops_, L. = _Scops zorca_ (GM.)

SWAINS.)

_Ephialitis_, KEYS. & BL. 1840, _nec_ SCHRANK, 1802.

_Megascops_, KAUP, 1848. (Type, _Strix asio_, L.)

GEN. CHAR. Size small, the head provided with ear-tufts. Bill

light-colored; iris yellow. Three to four outer quills with inner webs

sinuated. Wings long (more than twice the length of the tail, which

is short and slightly rounded); second to fifth quills longest. Toes

naked, or only scantily feathered. Ear-conch small and simple. Plumage

exceedingly variegated, the colors different shades of brown, with

rufous, black, and white, in fine mottlings and pencillings; feathers

above and below usually with blackish shaft-streaks, those beneath

usually with five transverse bars; primaries spotted with whitish, and

outer webs of the lower row of scapulars the same edged terminally with

black. Tail obscurely banded.

[Illustration: ½

_Scops asio._]

The species of this genus are cosmopolitan, the greater number, however,

being found in tropical regions. All the American species differ from

_S. zorca_ of Europe in having the fourth and fifth quills longest,

instead of the second, and in having three to four, instead of only

two, of the outer quills with the inner web sinuated, as well as in

having the quills shorter, broader, and more bowed, and their under

surface more concave. They may, perhaps, be distinguished as a separate

subgenus (_Megascops_, Kaup). Of the American species all but _S. asio_

(including its several races) have the toes perfectly naked to their

very bases.

Species and Races.

COMMON CHARACTERS. Plumage brown, gray, or rufous, and whitish,

finely mottled above; lower parts transversely barred, and with dark

shaft-streaks. Outer webs of lower scapulars light-colored (white

or ochraceous) and without markings. Tail crossed by rather obscure

mottled light and dark bars of nearly equal width. Outer webs of

primaries with nearly equal bands of whitish and dusky.

1. =S. asio.= Toes covered (more or less densely) with bristles,

or hair-like feathers. Wing, 5.50–7.80; tail, 3.20–4.10; culmen,

.50–.70; tarsus, 1.00–1.70; middle toe, .70–.80. Ear-tufts well

developed; facial circle black.

Colors smoky-brown and pale fulvous, with little or none of pure

white. Outer webs of the scapulars pale ochraceous-fulvous. Wing,

6.90–7.30; tail, 3.50–4.50. _Hab._ North Pacific region, from

Western Idaho and Washington Territory, northward to Sitka …

var. _kennicotti_.

Colors ashy-gray and pure white, with little or none of fulvous.

Outer webs of the scapulars pure white. Varying to bright

brick-red, or lateritious-rufous.

Mottlings coarse, the blackish median streaks above not sharply

defined, and the bars beneath heavy and distinct.

Wing, 6.10–7.75; tail, 3.30–4.35. In the red plumage, white

prevailing on the lower parts, where the red markings are not

broken into transverse bars. _Hab._ United States; except the

Southern Middle Province, the northwest region, and Florida …

var. _asio_.

Wing, 5.50–6.00; tail, 2.75–3.10. In the red plumage, red

prevailing on the lower parts, where the markings are much

broken into transverse bars. _Hab._ Florida and Southern

Georgia …

var. _floridanus_.

Wing, 5.50–5.80; tail, 3.20–3.30. Gray plumage, like var.

_asio_, but the mottling above much coarser, and the nape with

a strongly indicated collar of rounded white spots in pairs,

on opposite webs. Red plumage not seen. _Hab._ Eastern Mexico

and Guatemala …

var. _enano_.[25]

Mottlings fine, the blackish median streaks above very sharply

defined and conspicuous; bars beneath delicate and indistinct.

Wing, 6.20–6.50; tail, 3.35–3.50. _Hab._ Southern Middle

Province, and Southern California; Cape St. Lucas …

var. _maccalli_.

2. =S. flammeola.= Toes perfectly naked, the feathering of the

tarsus terminating abruptly at the lower joint. Wing, 5.40; tail,

2.80; culmen, .35; tarsus, .90; middle toe, .55. Ear-tufts short,

or rudimentary. Facial circle rusty. Outer webs of the scapulars

rusty-ochraceous, in striking contrast to the grayish of the wings

and back. Other markings and colors much as in _asio_. _Hab._

Mountain regions of Mexico and California, from Guatemala to Fort

Crook, Northern California.

Scops asio, BONAP.

A History of North American Birds; Land Birds; Vol. 3 of 3 · 第 47 / 607 题