WHITE-WINGED SHRIKE.

_?? Lanius elegans_, SW. F. B. A. II, 1831, 122.—NUTTALL, Man. I,

1840, 287.—CASSIN, Pr. A. N. Sc. 1857, 213.—BAIRD, Birds N. Am.

1858, 327. _Collyrio elegans_, BAIRD, Birds N. Am. 1858, 328.

_Collurio elegans_, BAIRD, Rev. Am. B. 1864, 444.—COOPER, Orn.

Cal. 1, 1870, 140. (According to DRESSER & SHARPE, P. Z. S. 1870,

595, who have examined the type, the _L. elegans_ of Swainson is

the same as _L. lahtora_, SYKES, of Siberia.)

HAB. California?

The description already given is taken from a specimen in the

collection of the Philadelphia Academy, labelled as having been

collected in California by Dr. Gambel, and is very decidedly different

from any of the recognized North American species. Of nearly the size

of _C. excubitoroides_ and _ludovicianus_, it has a bill even more

powerful than that of _C. borealis_. In its unwaved under parts and

uniform color of the entire upper surface, except scapulars, it

differs from _borealis_ and _excubitoroides_, and resembles

_ludovicianus_. In the extension of white over the inner webs of the

secondaries, it closely resembles _C. excubitor_. The great

restriction of white at the base of the tail—the four central feathers

being entirely black, and the bases of the others grayish-ashy—is

quite peculiar to the species.

The specimen in the Philadelphia Academy we originally referred to the

_L. elegans_ of Swainson, alleged to have come from the fur countries,

as although some appreciable differences presented themselves,

especially in the coloration of the tail, these were considered as

resulting from an imperfect description. Messrs. Sharpe and Dresser,

however, as quoted above, show that Swainson’s type really belongs to

_L. lahtora_, an Old World species. We therefore find it expedient to

give a new name to the variety, having no reason to discredit the

alleged locality of the specimen.

Collurio ludovicianus, var. excubitoroides, BAIRD.

A History of North American Birds; Land Birds; Vol. 1 of 3 · 第 336 / 438 题