BLACK AND WHITE CREEPING WARBLER.

_Motacilla varia_, LINN. S. N. I, 1766, 333. _Certhia varia_,

VIEILLOT; AUDUBON. _Mniotilta varia_, VIEILLOT, Gal. Ois. I, 1834,

276, pl. clxix.—AUDUBON.—BAIRD, Birds N. Am. 1858, 235; Rev.

167.—SCLATER, P. Z. S. 1858, 298 (Oaxaca, Xalapa); 1859, 363

(Xalapa); 1855, 143 (Bogota); 1856, 291 (Cordova); 1864, 172 (City

of Mex.)—IB. Catal. 1861, 25, no. 162.—SCL. & SALV. Ibis, 1859,

10 (Guatemala).—NEWTON, Ibis, 1859, 143 (Santa Cruz;

winter).—CAB. Jour. III, 475 (Cuba; winter).—BRYANT, Pr. Bost.

Soc. 1859 (Bahamas; April 20).—GOSSE, Birds Jam. 134 (Jamaica;

winter).—JONES, Nat. Bermuda, 1859, 29 (October).—CAB. Jour.

1860, 328 (Costa Rica).—LAWRENCE, Ann. N.Y. Lyc. 1861, 322

(Panama R. R.; winter).—GUNDL. Cab. Journ. 1861, 326 (Cuba; very

common). _Certhia maculata_, WILS. _Mniotilta borealis_, NUTT.

_Mniotilta varia_, var. _longirostris_, BAIRD, Birds N. Am. 1858,

xxxi, no. 167.—IB. Catal. in 8vo, 1869, no. 167.

Figures: AUD. Orn. Biog. V, pl. xc; Birds Am. II, pl. cxiv.—WILSON,

Am. Orn. III, pl. xix.

[Line drawing: _Mniotilta varia_, Vieill.]

SP. CHAR. Bill with the upper mandible considerably decurved, the

lower straight. General color of the male black, the feathers broadly

edged with white; the head all round black, with a median stripe in

the crown and neck above, a superciliary and a maxillary one of white.

Middle of belly, two conspicuous bands on the wings, outer edges of

tertials and inner of all the wing and tail feathers, and a spot on

the inner webs of the outer two tail-feathers, white. Rump and upper

tail-coverts black, edged externally with white. Female similar; the

under parts white, obsoletely streaked with black on the sides and

under tail-coverts. Length, 5 inches; wing, 2.85; tail, 2.25.

HAB. Eastern Province of North America, and north to Fort Simpson.

Both coasts of Mexico (as far north as Mazatlan, on west side), and

southward to Bogota. Whole of West Indies and Bermuda.

_Localities quoted._ Bahamas; Bermuda; Cuba; Jamaica; Santa Cruz; West

Indies; Cordova, Xalapa, Oaxaca, Mex.; Guatemala; Panama R.R.; Bogota.

Specimens breeding in the Southern States differ in rather longer bill

and less amount of black, but are otherwise undistinguishable.

[Illustration: _Mniotilta varia._

18685]

HABITS. The Black and White Creeper, nowhere an abundant species, is

met with in various sections of the country. It occurs in all parts of

New England and New York, and has been found in the interior as far

north as Fort Simpson. It has been met with on the Pacific coast only

at Mazatlan, is common in the Bahamas and most of the West India

Islands, generally as a migrant. It has also been found in Texas, in

the Indian Territory, and in Mexico, and throughout Central America.

In the last-named region Mr. Salvin states it to be pretty equally and

generally spread over the whole country. It is there migratory,

leaving in spring. It was also detected in Colombia, South America, by

Mr. C. W. Wyatt. Mr. Newton also met with it as a winter visitant in

St. Croix, leaving that island at the end of March. He regards this

species as almost a thorough Creeper in habits. In Jamaica a few are

resident throughout the year, according to the observations of Mr.

March, and though its nests have never been found there, a son of Mr.

March saw a pair carrying materials with which to construct one.

Dr. Coues states that this Warbler is a very common summer resident

near Washington, but is more abundant there in the spring and in the

fall, the greater number going farther north to breed. They arrive in

Washington during the first week in April, and are exceedingly

numerous until May. He adds that they are generally found in high open

woods, and that they “breed in holes in trees.” This is probably an

error, or, if ever known to occur, an entirely exceptional case.

Our bird is also a common summer visitant at Calais, arriving there

about the 1st of May, and by the 10th becoming rather abundant. Mr.

Boardman has frequently found their nests there, and always on the

ground, in rocky places and usually under small trees.

It does not appear to have been met with on the Pacific coast north of

Mazatlan, nor in any portion of Western North America, beyond the

valleys of the Mississippi and the Rio Grande.

In its habits this bird seems to be more of a Creeper than a Warbler.

It is an expert and nimble climber, and rarely, if ever, perches on

the branch of a tree or shrub. In the manner of the smaller

Woodpeckers, the Creepers, Nuthatches, and Titmice, it moves rapidly

around the trunks and larger limbs of the trees of the forest in

search of small insects and their larvæ. It is graceful and rapid in

movement, and is often so intent upon its hunt as to be unmindful of

the near presence of man.

It is found chiefly in thickets, but this is probably owing to the

fact that there its food is principally to be obtained. It is

occasionally seen in more open country, and has been known to breed in

the immediate vicinity of a dwelling.

Wilson regarded this bird as a true Creeper, and objected to its being

classed as a Warbler. He even denied to it the possession of any song.

In this he was quite mistaken. Though never loud, prolonged, or

powerful, the song of this Warbler is very sweet and pleasing. It

begins to sing from its first appearance in May, and continues to

repeat its brief refrain at intervals almost until its departure in

August and September. Nuttall speaks of it as being at first a

monotonous ditty, and as uttered in a strong but shrill and filing

tone. These notes, he adds, as the season advances, become more mellow

and warbling, and, though feeble, are pleasing, and are similar to

those of the Redstart. But this statement does not do full justice to

the varied and agreeable notes with which, in early spring, these

birds accompany their lively hunt for food among the tops of the

forest trees. They are diversified and sweet, and seem suggestive of a

genial and happy nature.

These birds make their appearance in New England early in May, and

remain there, among the thick woods, until the middle of October, and

in the Southern States until the verge of winter.

Their movements in search of food are like those of the Titmice,

keeping the feet together and moving in a succession of short rapid

hops up the trunks of trees and along the limbs, passing again to the

bottom by longer flights than in the ascent. They make but short

flights from tree to tree, but are apparently not incapable of more

prolonged ones.

So far as I know, these birds always build their nests on the ground.

Mr. Nuttall found one in Roxbury containing young about a week old.

The nest was on the ground, on the surface of a shelving rock, made of

coarse strips of the inner bark of the _Abies canadensis_ externally,

and internally of soft decayed leaves and dry grasses, and lined with

a thin layer of black hair. The parents fed their young in his

presence with affectionate attention, and manifested no uneasiness,

creeping, head downward, about the trunks of the neighboring trees,

carrying large smooth caterpillars to their young. The nests of this

bird are strongly and compactly built, externally of coarse strips of

various kinds of bark, and lined within with hair and fine stems of

grasses. In several instances I have known them to be roofed over at

the top, in the manner of the Golden-crowned Thrush. They measure

about three inches in their external diameter, and are equally deep.

The nests appear to be a favorite receptacle for the parasitic eggs of

the Cow-Bunting. Mr. Robert Ridgway obtained a nest at Mt. Carmel,

Ill., in which were four eggs of the _Molothrus_ and only two of the

parent birds; and Mr. T. M. Trippe, of Orange, N.Y., also found a nest

of this Creeper in which were but three of its own and five of the

parasite.

The eggs vary in shape from a rounded to an oblong oval, and in size

from .69 to .75 of an inch in length, and from .51 to .53 of an inch

in breadth. Their ground-color is a creamy-white, to which the deep

red markings impart an apparently pinkish tinge. They are marked more

or less profusely with bright red dots, points, and blotches. These

vary in number and in distribution. In some they are very fine, and

are chiefly confined to the larger end. In others they are larger,

more diffused, and occasionally there are intermingled marks and

blotches of slate-color. The effect of these variations is, at times,

to give the appearance of greater differences to these eggs than

really exists, the ground-color and the shade of the red markings

really presenting but little modifications.

The color of the young nestlings is closely assimilated to that of the

objects that usually surround the nest, and helps to conceal them. Mr.

Burroughs once came accidentally upon a nest with young of this

species. He says: “A Black and White Creeping Warbler suddenly became

much alarmed as I approached a crumbling old stump in a dense part of

the forest. He alighted upon it, chirped sharply, ran up and down its

sides, and finally left it with much reluctance. The nest, which

contained three young birds nearly fledged, was placed upon the ground

at the foot of the stump, and in such a position that the color of the

young harmonized perfectly with the bits of bark, sticks, etc., lying

about. My eye rested upon them for the second time before I made them

out. They hugged the nest very closely, but as I put down my hand they

all scampered off with loud cries for help, which caused the parent

birds to place themselves almost within my reach.”

A History of North American Birds; Land Birds; Vol. 1 of 3 · 第 201 / 438 题