YELLOW-THROATED GRAY WARBLER.

_Motacilla dominica_, L. Syst. Nat. 12th ed. 1766, 334 (_Ficedula

dominica cinerea_, BRISS. III, 520, pl. xxvii, fig. 3). _Dendroica

dominica_, BAIRD, Rev. Am. Birds, 209. _Motacilla superciliosa_,

BODDÆRT, Tableau Pl. enl. 686, fig. 1, 1783. _Dendroica

superciliosa_, BAIRD, Birds N. Am. 1858, 289.—SCLATER (Xalapa,

Oaxaca, Jamaica, Mexico).—SCLATER & SALVIN, Ibis, 1860, 274

(Duenas, Guat.; Sept.).—MARCH, Pr. A. N. Sc. 1863, 293

(Jamaica).—GUNDLACH, Cab. Jour. 1861, 326 (Cuba; very common).

_Motacilla flavicollis_, GMELIN, Syst. Nat. I, 1788, 959. _Sylvia

fl._ LATH.; WILS. II, pl. xii, fig. 6. _Motacilla pensilis_,

GMELIN, Syst. Nat. I, 1788, 960. _Sylvia p._ LATH.; VIEILL. (St.

Domingo).—BON.; AUD. Orn. Biog. I, pl. lxxxv; NUTT. _Sylvicola

pens._ RICH; BON.; AUD. Birds Am. II, pl. lxxix.—GOSSE, Birds Jam.

1847, 156 (Jamaica). _Rhimanphus pens._ CAB. Jour. III, 474 (Cuba).

Other localities: _Cordova_, SCLATER, P. Z. S. 1856, 291. _St.

Domingo_, SALLÉ, P. Z. S. 1857, 231. _Jamaica_, GOSSE, Birds Jam.

156.

SP. CHAR. Upper parts uniform grayish-blue. Chin and throat bright

yellow; under parts white. Forehead, and sometimes most of crown,

lores and cheeks, sides of throat, and numerous streaks on the sides

of the breast, black. A stripe from the nostrils over and behind the

eye, a crescent on the lower eyelid, the sides of the neck behind the

black cheekpatch, and two conspicuous bands on the wings, white.

Terminal half of the outer webs of the outer two, and terminal third

of the third tail-feathers, white. _Female_ almost precisely similar.

Length, 5.10; wing, 2.60; tail, 2.30. (3,322.)

HAB. Eastern Province of United States, north to Washington and

Cleveland; in winter abundant in Cuba; St. Domingo and Jamaica; Mexico

(Colima on west coast), and Guatemala. Resident in Jamaica?

An autumnal male (No. 1,098, Washington, D. C.) has the bluish-ash

above obscured by a wash of brown; the black “mask” less sharply

defined, the streaks on forehead wanting; the yellow paler and duller,

and the white beneath soiled with brownish.

In general pattern of coloration this species resembles two others;

one from Arizona, the other from Porto Rico. The diagnoses are as

follows:—

COMMON CHARACTERS. Upper parts ash-gray, the forehead and sides

of vertex black. A line from nostril to above eye (passing into

white behind), chin, and throat, yellow, margined laterally with

blackish; crissum, inside of wings, axillars; and two bands on

wings, white.

Superciliary line extending to the nape, and white, excepting

sometimes anterior to the eye. Cheeks black, separated from the

ash of the neck by a white patch. Eyelids and infra-ocular

crescent white. Back not streaked. Bill lengthened, gonys

almost concave.

Yellow confined to jugulum; rest of under parts white; the

sides streaked with black … _dominica_.

Superciliary line scarcely extending beyond the eye, and

yellow, excepting at extreme end. Cheeks ashy, like sides of

neck; dusky only near the eye, and not bordered on side of neck

behind by white. Eyelids and infra-ocular crescent yellow. Back

streaked. Bill short, gonys slightly convex.

Yellow of under parts confined to jugulum; rest of under

parts white; the sides streaked with black … _graciæ_.

Yellow of under parts extending to crissum. Sides scarcely

streaked … _adelaidæ._[51]

[Illustration: PLATE XIV.

1. Dendroica æstiva, _Gm._ ♂ Pa., 940.

2. “ maculosa, _Gm._ ♂ D. C., 20634.

3. “ montana. (From Audubon.)

4. “ olivacea, _Giraud_. ♂ Mex., 30692.

5. Dendroica kirtlandi, _Baird_. ♂ Ohio, 4363.

6. “ dominica, _Linn._ ♂ Ga., 3322.

7. “ “ , _var._ albilora, _Ridgw._ ♂ Ohio, 7701.

8. Dendroica palmarum, _Gm._ ♂ N. S., 26929.

9. “ discolor, _Vieill._ ♂ Pa., 1091.

10. “ graciæ, _Coues_. ♂ Ariz., 40680.

11. Seiurus aurocapillus, _Linn._ ♂ Pa., 1433.

12. “ noveboracensis, _Gm._ ♂ Pa., 2434.

13. “ ludovicianus, _Aud._ ♂ Pa., 964.]

In the Review (p. 209) several variations in this species are noted;

but at that time there was not a sufficient number of specimens to

warrant our coming to a conclusion as to their value. Now, however, we

have better material before us, and upon the examination of about

thirty specimens, including two series of nearly equal numbers,—one

from the Atlantic States and the West Indies, the other from the

Mississippi region and Middle America,—find that there are two

appreciably different races, to be distinguished from each other by

points of constant difference. All birds of the first series have the

bill longer than any of the latter, the difference in a majority of

the specimens being very considerable; they also have the superciliary

stripe bright yellow anteriorly, while among the latter there is never

more than a trace of yellow over the lores, and even this minimum

amount is discernible only in one or two individuals. The West Indian

form is, of course, the true _dominica_, and to be distinguished as

var. _dominica_; as none of the synonymes of this species were founded

upon the Mexican one, however, it will be necessary to propose a new

name; accordingly, the term var. _albilora_ is selected as being most

descriptive of its peculiar features.

The following synopsis, taken from typical specimens, shows the

differences between these two races:—

(No. 3,322, ♂, Liberty County, Georgia.) Bill (from nostril),

.45; tarsus, .60; wing, 2.60; tail, 2.00. Superciliary

stripe, anterior to eye, wholly bright yellow; yellow of chin

and maxillæ extending to the bill. _Hab._ In summer, Atlantic

States of United States, north to Washington. In winter, and

possibly all the year, in Cuba, Santo Domingo, and Jamaica …

var. _dominica_.

(No. 61,136, ♂, Belize, Honduras.) Bill (from nostril), .35;

tarsus, .60; wing, 2.70; tail, 2.20. Superciliary stripe

wholly white; yellow of chin and maxillæ bordered narrowly

next the bill with white. _Hab._ In summer, the Mississippi

region of United States, north to Lake Erie; common in South

Illinois. In winter, and possibly all the year, in Mexico,

south to Guatemala, Yucatan on the Atlantic, and Colima on

the Pacific side … var. _albilora_.

HABITS. The history of the Yellow-throated Warbler is very imperfectly

known. Its geographical distribution is irregular and apparently

eccentric. Found occasionally, rather than frequently, in the Southern

Atlantic and Gulf States, it occurs irregularly as far north as

Washington, New York City, Cleveland, O., Union County, Ill., and

Kansas. In the last place it is supposed also occasionally to breed.

West of this it has not been traced in any portion of the United

States. It was obtained in Tamaulipas, Mexico, by Lieutenant Couch,

and on the western coast Mr. Xantus found it at Colima. Mr. Sclater

has also procured it from other portions of Mexico, and M. Boucard

took it at Oaxaca. It has been obtained in Guatemala and Jamaica. In

the latter place it is found the entire season. In Cuba, in the

winter, it is quite common. It has also been found in St. Domingo, and

probably in the other West India Islands. Mr. Gosse states that these

birds do not appear in Jamaica before the 16th of August, and that

they leave by the first of April. On the other hand, Mr. March, in his

notes on the birds of that island, states that on the 8th of August he

obtained an old bird and two young, the latter of which he was

confident had been hatched on the island, and his son had met with the

birds all through the summer, and had procured a specimen on the 4th

of June.

Wilson states that the habits of this species partake more of those of

the Creeper than of the true Warbler. He met with it in Georgia in the

month of February. He speaks of its notes as loud, and as resembling

those of the Indigo-Bird. It remained some time creeping around the

branches of the same pine, in the manner of a _Parus_, uttering its

song every few minutes. When it flew to another tree, it would alight

on the trunk and run nimbly up and down in search of insects. They are

said to arrive in Georgia in February, after an absence of only three

months. Wilson states that they occur as far north as Pennsylvania,

but does not give his authority. The food of this species appears to

be larvæ and pupæ, rather than winged insects. Those dissected by Mr.

Gosse in Jamaica were found to have quite large stomachs, containing

caterpillars of various kinds.

Nuttall and Audubon are very contradictory in their statements

touching its nesting, and it is not probable that the accounts given

by either are founded upon any reliable authorities. The former

describes a nest remarkable both for structure and situation, said to

have been found in West Florida, suspended by a kind of rope from the

end of branches over a stream or a ravine. This nest, entirely

pensile, is impervious to rain, and with an entrance at the bottom. He

gives a very full and minute description of this nest, but gives no

authority and no data to establish its authenticity. We can therefore

only dismiss it as probably erroneous.

On the other hand, Mr. Audubon claims to have seen its nest, of which

he gives a very different account. He describes it as very prettily

constructed, like the nests of any other of this genus, its outer

parts made of dry lichens and soft mosses, the inner of silky

substances and fibres of the Spanish moss. The eggs are said to be

four in number, with a white ground-color and a few purple dots near

the larger end. He thinks they raise two broods in a season in

Louisiana. These nests are not pensile, but are placed on the

horizontal branch of the cypress, from twenty to fifty feet above the

ground. It closely resembles a knot or a tuft of moss, and therefore

is not easily discovered from below.

A nest containing a single egg, found by Mr. Gosse near Neosho Falls,

and supposed to belong to this species, but not fully identified, was

built in a low sapling a few feet from the ground, and is a very neat

structure, such as is described by Audubon. The egg is pure

crystal-white, oblong and pointed, and marked with purple and brown.

Mr. Ridgway informs me that in Southern Illinois, at least in the

valley of the Lower Wabash, the Yellow-throated Warbler may be said to

be at least a regular, though not common, summer sojourner. Though it

inhabits chiefly the swampy portions of the bottom-lands, it makes

frequent visits to the orchards and door-yards, less often, however,

in the breeding than in the migrating season. In its manners it is

almost as much of a Creeper as the _Mniotilta varia_, being frequently

seen creeping not only along the branches of trees, but over the eaves

and cornices of buildings, with all the facility of a Nuthatch.

Eggs supposed to be of this species, taken near Wilmington, N. C., by

Mr. Norwood Giles (16,199, Smith. Coll.), have a ground-color of dull

ashy-white, with a livid tinge. They are thickly speckled, chiefly

around the larger end, with irregular markings of rufous, and fainter

ones of lilac interspersed with a very few minute specks of black.

They are broadly ovate in form, and measure .70 by .55 of an inch.

Dendroica graciæ, COUES.

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