. Birds of Massachusetts and other New England states. Birds; Birds. 308 BIRDS OF MASSACHUSETTS. Canada Warbler, Juvenile. to preceding, but upper plumage, especially crown, may be tinged with olive-brown, and markings on breast much fainter. Young in juvenal plumage (sexes alike): Almost identical with young of Wilson's Warbler. Measurements. — Length to in.; folded wing to ; tail to ; bill .45 to .52; tarsus .65 to .71. Female slightly smaller than male. Molts. — Juvenal plumage succeeds natal down by complete postnatal molt; first winter plumage acquired by parti
. Birds of Massachusetts and other New England states. Birds; Birds. 308 BIRDS OF MASSACHUSETTS. Canada Warbler, Juvenile. to preceding, but upper plumage, especially crown, may be tinged with olive-brown, and markings on breast much fainter. Young in juvenal plumage (sexes alike): Almost identical with young of Wilson's Warbler. Measurements. — Length to in.; folded wing to ; tail to ; bill .45 to .52; tarsus .65 to .71. Female slightly smaller than male. Molts. — Juvenal plumage succeeds natal down by complete postnatal molt; first winter plumage acquired by partial post juvenal molt (late June, July) involving body plumage and wing-coverts; first breeding plumage assumed after a partial molt affecting chiefly head, chin and throat, but not rest of plumage; adults have complete postnuptial molt annually (late June, July); breeding plumage probably acquired by wear. Field Marks. — Only New England warbler that is plain gray above, without white markings on wings or tail. Male: Unmistakable; well-defined necklace of black spots or streaks across yellow breast. Female: Duller than male, necklace less heavily marked and less distinct, but always discernible. Young: Resemble female, but necklace some- times barely visible, and upper plumage tinged more or less brownish, being most noticeable on head. Voice. — Alarm notes, a sharp chip, chick or chick; song, a sweet warbling utterance, loud and animated, and unlike song of any other warbler; difficult to describe be- cause of its variations, but the following renditions are sug- gestive : tu tu tsioe tu tu, the long syllable being higher pitched (Lynds Jones); te chit a wit, te chit a wit, tche tche (H. D. Thoreau); a loud and striking rup-it-chee, rup-it-chee, rup-it chitt-it-lit (E. S. Thompson); t'le we. Vie toe, fie we, t'le we, t'l it wit, often begins with a little whirr or snap (Mrs. J. V. Farwell, Jr.). Breeding. — In cool, moist woodlands or wooded swamps, of deciduous or m
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Keywords: ., bookauthorforb, bookcentury1900, bookdecade1920, booksubjectbirds
