637. Prothonotary Warbler. Prothonotaria citrea.

Range.--South Atlantic and Gulf States, north in the interior to Iowa and Illinois.

This species is often known as the Golden Swamp Warbler because of the rich golden yellow of the head and underparts. They frequent and nest in the vicinity of swamps or ponds, nesting in the cavities of trees or stubs at low elevations, filling the cavity with leaves, moss and grasses, neatly cupped to receive the four to seven eggs, which are creamy or pinkish white, profusely spotted with reddish brown and chestnut. Size .72 × .55. Data.--Quincy, Mo., June 1, 1897. 5 eggs. Nest in hole of a dead stub 6 feet up, in timber some distance from water; made of moss and grasses, lined with hair.

638. Swainson's Warbler. Helinaia swainsoni.

Range.--South Atlantic and Gulf States, north to Virginia and Indiana, and west to eastern Texas; winters in Mexico and the West Indies.

This species is brownish above and white below, with a whitish superciliary stripe. It has been found breeding most numerously in thickets and tangled underbush about swamps and pools in any locality. Their nests are either in bushes or attached to upright rushes over water after the manner of the Long-billed Marsh Wren, being made of leaves, moss, rootlets, etc., lined with fine grasses or hair, and deeply cupped for the reception of the three or four unmarked white or bluish white eggs which are laid during May or June. Size .75 × .58. Data.--Near Charlestown, S. C., May 12, 1888, 3 eggs. Nest in canes 4 feet from ground, made of strips of rushes, sweet gum and water oak leaves, lined with pine needles.

639. Worm-eating Warbler. Helmitheros vermivorus.

Range.--United States east of the Plains, breeding north to southern New England and Illinois; winters south of our borders.

This bird can be identified in all plumages by the three light buff and two black stripes on the crown and narrower black stripes through the eye. Their habits are similar to those of the Oven-bird, they feeding largely upon the ground amid dead leaves.

They are quite abundant in most localities in their range, nesting in hollows on the ground in open woods or shrubbery on hill sides; the nest is made of leaves, grasses and rootlets, lined with hair or finer grasses, and is usually placed under the shelter of some small bush. They lay (in May, June or July) three to six eggs, white, marked or blotched either sparingly or heavily with chestnut or lavender. Size .70 × .52.

640. Bachman's Warbler. Vermivora bachmani.

Range.--Southeastern United States, along the Gulf coast to Louisiana and north to Virginia and Missouri.

This species is one of the rarest of the Warblers, but is now much more abundant than twenty years ago, when it had apparently disappeared. They are greenish above, and yellow below, and on the forehead and shoulder, and with black patches on the crown and breast. They have been found breeding in Missouri, nesting on the ground like others of this genus; the eggs are white wreathed about the large end and sparingly specked over the whole surface with reddish brown and chestnut. Size .65 × .50.

641. Blue-winged Warbler. Vermivora pinus.

Range.--Eastern United States, breeding north to southern New England and in the Mississippi Valley to Minnesota; winters south of our borders.

This common species has the crown and underparts yellow, line through the eye black, and white wing bars and spots on outer tail feathers. They breed most abundantly in the northern half of their United States range, placing their nests on the ground in thickets or on the edge of woods; the nests are made of strips of bark, usually grapevine, and leaves, and are usually high and deeply cupped, they are almost always placed among the upright shoots of young bushes. The eggs are white, finely specked with reddish brown with great variations as to markings. Size .65 × .50. Data.--Old Saybrook, Conn., June 1, 1900. 5 eggs. Nest composed chiefly of dry beech leaves and strips of cedar bark, lined with shreds of bark and fine grass; situated on the ground among a bunch of weeds in the woods.

642. Golden-winged Warbler. Vermivora chrysoptera.

Range.--Eastern United States, breeding north to the southern parts of the British Provinces, winters south of the United States.

This is a very handsome species with black throat and ear patches, and yellow crown and wing bars, the upper parts being gray and the lower white. They frequent low fields or hillsides where they nest among weeds or vines, making the nest of strips of bark, grasses and fibres, and locating it close to the ground in clumps of weeds, low bushes or briers. The three to five eggs are white with a very great diversity of markings, either heavily or minutely spotted or wreathed with chestnut and gray. Size .62 × .50.

643. Lucy's Warbler. Vermivora luciÆ.

Range.--Western Mexico, north commonly to Arizona and casually to southern Utah.

This small gray and white Warbler is especially distinguished by a chestnut rump and patch in center of the crown. Besides nesting in forks of low bushes, this species is said to place the domiciles in almost any crevice or nook that suits their fancy, such as loose bark on tree trunks, holes in trees, or other birds' nests. The eggs which are usually laid during May are white, sparingly specked and wreathed with reddish brown. Size .60 × .50.

644. Virginia's Warbler. Vermivora virginiÆ.

Range.--Western Mexico, north to Arizona and New Mexico, and also less commonly to Colorado.

This species is similar to the last but has the rump and a patch on the breast, yellow. They are found quite abundantly in some localities, usually on mountain ranges, nesting in hollows on the ground beside rocks, stumps or in crevices among the rocks; the nests are made of fine strips of bark and grasses, skillfully woven together, and the three to five eggs are pure white, specked and wreathed with reddish brown. Size .62 × .50.

645. Nashville Warbler. Vermivora rubricapilla rubricapilla.

Range.--North America east of the Plains, breeding from New York and Illinois north to Hudson Bay and Labrador; winters south of our borders.

This small species is yellow below and greenish above, with an ashy gray head and neck, enclosing a chestnut crown patch. They breed abundantly in New England, usually on side hills covered with clumps of young pines, the nests being placed flush with the surface of the ground and usually covered with overhanging grass; they are made of grasses and pine needles, the eggs are white, finely specked with bright reddish brown. Size .60 × .45. Data.--Worcester, Mass., June 23, 1895. Nest of pine needles and grasses in hollow in the moss on a scrubby pine hillside.

645a. Calaveras Warbler. Vermivora rubricapilla gutturalis.

Range.--Western United States, breeding on ranges from California and Idaho north to British Columbia; winters in Mexico.

A slightly brighter colored form of the last species. Their habits are the same and the eggs cannot be distinguished from those of the eastern bird.

646. Orange-crowned Warbler. Vermivora celata celata.

Range.--North America, chiefly in the interior, breeding north of the United States except in the Rockies south to Arizona and New Mexico; winters in the Gulf States and southward.

This plainly clad, greenish colored species has a concealed patch of orange brown on the crown. They have been found breeding about Hudson Bay and in the Mackenzie River district, placing their nests in hollows on the ground, usually on the side of banks or hills and concealed by small tufts of grass or bushes. The three or four eggs are white, speckled with reddish brown. Size .64 × .45.

646a. Lutescent Warbler. Vermivora celata lutescens.

Range.--Pacific coast, breeding from California to Alaska; winters in Mexico.

Similar to the last but more yellowish below. They make their nests of leaves, rootlets, moss, etc., lined with hair, and placed on the ground, concealed by tufts of grass or by bushes. The eggs are like those of the last. Data.--Danville, Cal., April 21, 1898. Nest on the ground on a side hill; among weeds in the shade of a large oak.

646b. Dusky Warbler. Vermivora celata sordida.

Range.--Santa Barbara Islands, off California.

Said to be duller colored and darker than the others. The eggs cannot be distinguished.

647. Tennessee Warbler. Vermivora peregrina.

Range.--Eastern North America, breeding from the northern tier of states, northward; winters to northern South America.

This species has greenish upper parts, white lower parts and superciliary line, and gray crown and nape. They nest either on the ground or at low elevations in bushes, making the structure of grasses and fibres, lined with hair; they are found on wild, tangled hillsides and mountain ranges. The eggs are pure white, sparingly specked with reddish brown. Size .62 × .45.

648. Parula Warbler. Compsothlypis americana americana.

Range.--Eastern United States, breeding in the southern half.

The upper parts of this handsome species are bluish gray with a greenish patch in the middle of the back; the throat and breast are yellow with a patch of black and chestnut. They are abundant birds in suitable localities, breeding in swamps, especially those with old or dead trees covered with hanging moss (usnea).

The nests may be found at any height from the ground, and are usually made by turning and gathering up the ends of the hanging moss to form a pocket, which is lined with fine grass or hair. The four to six eggs are white or creamy white, wreathed with specks of reddish brown and chestnut. Size .64 × .44.

648a. Northern Parula Warbler. Compsothlypis americana usneÆ.

Range.--Northern half of eastern United States and southern Canada; winters from the Gulf States southward.

The nesting habits of the northern form of the Blue-yellow-backed Warbler are in all respects like those of the last, and like them, where moss grown swamps are not to be found, they have been known to construct nests of moss suspended from branches of trees, or to nest in bunches of dead leaves. Data.--Oxford, Mass., June 7, 1895. Nest in a dead pine swamp; made in end of hanging moss about 6 feet from the ground. Large colony breeding.

649. Sennett's Warbler. Compsothlypis piti ayumi nigrilora.

Range.--Eastern Mexico, north to the Lower Rio Grande Valley in Texas.

This species is similar to the Parula but is more extensively yellow below, and has black lores and ear coverts. Their habits are the same as those of the last and their nests are generally placed in hanging moss, and are also said to have been found hollowed out in the mistletoe which grows on many trees in southern Texas, New Mexico and Arizona. The eggs cannot be distinguished from those of the last.

650. Cape May Warbler. Dendroica tigrina.

Range.--Eastern North America, breeding from northern New England and Manitoba northward; winters south of the United States.

This beautiful Warbler is yellow below and on the rump, streaked on the breast and sides with black; the ear coverts and sometimes the throat are chestnut. They are very local in their distribution both during migrations and in their breeding grounds. They nest in the outer branches of trees, preferably conifers, making the nest of slender twigs, rootlets, grasses, etc., lined with hair; the four or five eggs are white, variously specked with reddish brown and lilac; size .65 × .48.

651. Olive Warbler. Peucedramus olivaceus.

Range.--Mountains of New Mexico and Arizona southward.

This peculiar species may readily be recognized by its saffron or orange-brown colored head and neck, with broad black bar through the eye. They nest at high elevations in coniferous trees on the mountain sides, placing their nests either on the horizontal boughs or forks at the end of them. The nests are very beautiful structures made of moss, lichens, fine rootlets and grasses and setting high on the limb like those of the Blue-gray Gnatcatcher. The eggs are grayish white with a bluish tinge, thickly speckled with blackish; size .64 × .48. Data.--Huachuca Mts., Arizona, June 21, 1901. Nest in a sugar pine near extremity of branch, 25 feet from the ground and 20 feet out from the trunk of the tree; composed of lichens and fine rootlets, lined with plant down.

652. Yellow Warbler. Dendroica Æstiva Æstiva.

Range.--Breeds in the whole or North America; winters south of our borders.

This well known and very common species is wholly yellow, being more or less greenish on the back, wings and tail, and the male is streaked on the sides with chestnut. They nest anywhere in trees or bushes, either in woods, pastures, parks or dooryards, and their sprightly song is much in evidence throughout the summer. The nests are usually placed in upright crotches or forks, and are made of vegetable fibres and fine grasses compactly woven together and lined with plant down and hair; the eggs, which are laid in May or June, are greenish white, boldly specked in endless patterns with shades of brown and lilac; size .65 × .50.

652a. Sonora Yellow Warbler. Dendroica Æstiva sonorana.

Range.--Arizona, New Mexico and western Texas, southward.

This form is brighter yellow, especially above, than the last. The nesting habits are the same and the eggs indistinguishable from those of the preceding.

652b. Alaska Yellow Warbler. Dendroica Æstiva rubiginosa.

Range.--Breeds in Alaska and on the coast south to Vancouver; winters south of the United States.

Similar to the common Yellow Warbler but slightly darker above; its eggs and nesting habits are the same.

NEST OF YELLOW WARBLER.

653. Mangrove Warbler. Dendroica bryanti castaneiceps.

Range.--Southern Lower California and western Mexico and Central America.

This species is very similar to the Yellow Warbler but the entire head and neck of the male are yellowish chestnut. Their nesting habits or eggs do not vary in any essential particular from those of the common Yellow-birds of the United States.

654. Black-throated Blue Warbler. Dendroica cÆrulescens cÆrulescens.

Range.--Eastern North America, breeding from northern United States northward; winters in the Gulf States and southward.

These black-throated bluish-backed Warblers are abundant in swampy woodland both during migrations and at their breeding grounds; either sex can readily be identified in any plumage, by the presence of a small white spot at the base of the primaries. They nest in underbrush or low bushes only a few inches above the ground, making the nests of bark strips, moss rootlets, etc., lined with fine grasses or hair; the eggs are pale buffy white more or less dotted with pale brownish; size .65 × .50. Data.--Warren, Pa., June 9, 1891. 3 eggs. Nest one foot from the ground in brush; made of fine pieces of rotten wood, laurel bark and lined with fine grasses.

654a. Cairns Warbler. Dendroica cÆrulescens cairnsi.

Range.--Mountain ranges of North Carolina to Georgia.

A darker form whose habits and eggs are identical with those of the last.

655. Myrtle Warbler. Dendroica coronata.

Range.--Eastern North America, breeding from northern United States northward. Winters in the southern half of eastern United States.

This beautiful gray, white and black Warbler can readily be identified by its yellow rump, side patches and crown patch. It is one of our most common species during migrations when it is found west to the Rockies and casually farther. They nest on the lower branches of coniferous trees, making their homes of rootlets, plant fibres and grasses; during June or the latter part of May, three or four eggs are laid; they are white, spotted with several shades of brown and lilac; size .70 × .50. Data.--Lancaster, N. H., June 7, 1888. Nest in a small spruce, about 6 feet up; made of fine twigs, lined with feathers.

656. Audubon's Warbler. Dendroica auduboni auduboni.

Range.--Mountain ranges of western United States from British Columbia to Mexico.

This bird resembles the last in the location of the yellow patches but has a yellow instead of a white throat, and is otherwise differently marked. They are as abundant in suitable localities as are the Myrtle Warblers in the east, nesting on the outer branches of coniferous trees at any height from the ground. The nests are made of bark strips, rootlets, plant fibre, grasses and pine needles, the three to five eggs are greenish or bluish white marked with brown and lilac; size .68 × .52. The one figured is from a beautiful set of four in Mr. C. W. Crandall's collection, and the ground color is a delicate shade of blue. Data.--Spanaway, Washington, April 23, 1902. Nest on the limb of a large fir in a clump of three in prairie country.

656a. Black-fronted Warbler. Dendroica auduboni nigrifrons.

Range.--Mountains of southern Arizona and Mexico.

Similar to the preceding, but with the forehead and ear coverts black. Their nests and eggs are in no way different from those of Audubon's Warbler.

657. Magnolia Warbler. Dendroica magnolia.

Range.--North America east of the Rockies, breeding from northern United States to Hudson Bay region and in the Alleghanies, south to Pennsylvania. Winters south of our borders. This species, which is one of the most beautiful of the Warblers, is entirely yellow below and on the rump, the breast and sides being heavily streaked with black; a large patch on the back and the ear coverts are black.

They build in coniferous trees at any elevation from the ground, making their nests of rootlets and grass stems, usually lined with hair; the eggs are dull white, specked with pale reddish brown; size .65 × .48. Data.--Worcester, Mass., May 30, 1895. 4 eggs. Nest of fine rootlets and grasses about 30 feet up on the end of a limb of a pine overhanging a brook.

658. Cerulean Warbler. Dendroica cÆrulea.

Range.--United States east of the Plains, breeding chiefly in the northern half of the Mississippi Valley, rare east of the Alleghanies and casual in New England.

These beautiful Warblers are light blue gray above, streaked with black on back, white below, with a grayish blue band on breast and streaks on the sides; they have two wide white wing bars and spots on the outer tail feathers. They are found chiefly in the higher trees where they glean on the foliage; they build also usually above twenty feet from the ground in any kind of tree, placing the nests well out on the horizontal limbs, generally in a fork. The nests are made of fine strips of bark, fibres, rootlets, etc., lined with hair; the eggs are white or pale bluish white, specked with reddish brown; size .62 × .48. Data.--Fargo, Ontario, June 2, 1901. Nest in a burr oak, 18 feet from the ground on a horizontal limb.

NEST OF MAGNOLIA WARBLER.

659. Chestnut-sided Warbler. Dendroica pensylvanica.

Range.--United States, east of the Plains, breeding in the Middle States and Illinois, north to Manitoba and New Brunswick. Winters south of our border.

The adults of this handsome species may readily be known by the white underparts and the broad chestnut stripe on the flanks; the crown is yellow. They frequent low brush in open woods or on hillsides and pastures, nesting at low elevations, usually below three feet from the ground, and often concealing their nests beneath the leaves in the tops of low small bushes. The nests are made of grasses, weed stems and some fibres, but they do not have as wooly an appearance as those of the Yellow Warblers which nest in the same localities and similar locations. Their eggs are white or creamy white (never greenish white), specked with brown and gray. Size .65 × .50. Data.--Worcester, Mass., June 6, 1890. Nest in the top of a huckleberry bush, 2 feet from the ground; made of grasses and plant fibres. Bird did not leave nest until touched with the hand.

660. Bay-breasted Warbler. Dendroica castanea.

Range.--North America, east of the Plains, breeding from northern United States north to the Hudson Bay; winters in Central and South America.

This species has the crown, throat and sides a rich chestnut; forehead and face black; underparts white. They nest in coniferous trees in swampy places, making their nests of bark shreds and rootlets and placing them in horizontal forks at elevations of from five to thirty feet from the ground. The three or four eggs are laid late in May or during June; they are white, usually quite heavily spotted and blotched with reddish brown, umber and grayish. Size .70 × .50.

661. Black-poll Warbler. Dendroica striata.

Range.--North America, east of the Rockies, breeding from northern United States north to Labrador and Alaska; winters in South America.

This black and white Warbler has a solid black cap, and the underparts are white, streaked with black on the sides. In the woods they bear some resemblance to the Black and White Warbler, but do not have the creeping habits of that species. During migrations they are found in equal abundance in swamps or orchards. In their breeding range, they nest at low elevations in stunted pines or spruces, making their nests of rootlets and lichens, lined with feathers. The eggs are dull whitish, spotted or blotched with brown and neutral tints. Size .72 × .50. Data.--Grand Manan, N. B., June 12, 1883. Nest and four eggs on branch of a stunted spruce 2 feet from the ground.

662. Blackburnian Warbler. Dendroica fusca.

Range.--North America, east of the Plains, breeding from Massachusetts and Minnesota north to Hudson Bay; south in the Alleghanies to the Carolinas. Winters in Central and South America.

This species is, without exception, the most exquisite of the family; the male can always be known by the bright orange throat, breast and superciliary stripe, the upper parts being largely black. They arrive with us when the apple trees are in bloom and after a week's delay pass on to more northerly districts. Their nests are constructed of rootlets, fine weed stalks and grasses, lined with hair, and are placed on horizontal limbs of coniferous trees. The three or four eggs are greenish white, speckled, spotted and blotched with reddish brown and neutral tints. Size .70 × .48. Data.--Lancaster, Mass., June 21, 1901. Nest in a white pine, 38 feet from the ground on a limb 4 feet from the trunk; composed of fine rootlets and hair, resembling the nest of a Chipping Sparrow.

BLACKBURNIAN WARBLERS.

663. Yellow-throated Warbler. Dendroica dominica dominica.

Range.--South Atlantic and Gulf States, north to Virginia and casually farther; winters in Florida and the West Indies.

This species has gray upper parts with two white wing bars, the throat, breast and superciliary line are yellow, and the lores, cheeks and streaks on the sides are black. These birds nest abundantly in the South Atlantic States, usually in pines, and either on horizontal limbs or in bunches of Spanish moss. The nests are made of slender pieces of twigs, rootlets and strips of bark, and lined with either hair or feathers, the eggs are three to five in number, pale greenish white, specked about the large end with reddish brown and gray. Size .70 × .50. Data.--Raleigh, N. C., May 3, 1890. Nest 43 feet up on limb of pine; made of grasses and hair.

663a. Sycamore Warbler. Dendroica dominica albilora.

Range.--Mississippi Valley, breeding north to Ohio and Illinois, and west to Kansas and Texas; winters south of the United States.

This bird is precisely like the last except that the superciliary stripe is usually white. Their nesting habits are precisely like those of the last, and the nests are usually on horizontal branches of sycamores; the eggs cannot be distinguished from those of the Yellow-throated Warbler.

664. Grace's Warbler. Dendroica graciÆ.

Range.--Southwestern United States, abundant in Arizona and New Mexico.

This Warbler is similar in markings and colors to the Yellow-throated variety except that the cheeks are gray instead of black. The nesting habits of the two species are the same, these birds building high in coniferous trees; the nests are made of rootlets and bark shreds, lined with hair or feathers; the eggs are white, dotted with reddish brown and lilac. Size .68 × .48.

665. Black-throated Gray Warbler. Dendroica nigrescens.

Range.--United States from the Rockies to the Pacific coast and north to British Columbia; winters south of our borders.

The general color of this species is grayish above and white below as is a superciliary line and stripe down the side of the throat; the crown, cheeks and throat are black and there is a yellow spot in front of the eye. They inhabit woodland and thickets and are common in such localities from Arizona to Oregon, nesting usually at low elevations in bushes or shrubs; the nests are made of grasses and fibres, woven together, and lined with hair or fine grasses, resembling, slightly, nests of the Yellow Warbler. The eggs are white or greenish white, specked with reddish brown and umber. Size .65 × .52. Data.--Waldo, Oregon, June 1, 1901. Nest 3 feet from the ground in a small oak in valley. Collector, C. W. Bowles. (Crandall collection.)

666. Golden-cheeked Warbler. Dendroica chrysoparia.

Range.--Central and southern Texas south to Central America.

This beautiful and rare species is entirely black above and on the throat, enclosing a large bright yellow patch about the eye and a small one on the crown. In their very restricted United States range, the birds are met with in cedar timber where they nest at low elevations in the upright forks of young trees of this variety. Their nests are made of strips of cedar bark, interwoven with plant fibres and spider webs making compact nests, which they line with hair and feathers. Their three or four eggs are white, dotted and specked with reddish brown and umber. Size .75 × .55.

667. Black-throated Green Warbler. Dendroica virens.

Range.--Eastern United States, breeding from southern New England, South Carolina in the Alleghanies, and Illinois north to Hudson Bay; winters south of the United States.

These common eastern birds are similar to the last but the entire upper parts are olive greenish. They are nearly always found, and always nest, in pines, either groves or hillsides covered with young pines. The nests are usually placed out among the pine needles where they are very difficult to locate, and resemble nests of the Chipping Sparrow. I have found them at heights ranging from six to forty or fifty feet from the ground. The three or four eggs, which they lay in June, are white, wreathed and speckled with brownish and lilac. Size .60 × .50.

668. Townsend's Warbler. Dendroica townsendi.

Range.--Western United States, from the Rockies to the Pacific and from Alaska southward; winters in Mexico.

This is the common western representative of the last species, and is similar but has black ear patches and the crown is black. They nest in coniferous woods throughout their United States and Canadian range, the nests being placed at any height from the ground and being constructed like those of the Black-throated Green. Their eggs are not distinguishable from those of the latter. Size .60 × .50.