PINE WARBLER 2OI 



Nest "Outside depth 1.75; inside depth i.io; outside diameter, 

 3.75 ; inside diameter, 2.00. Composed of grasses, roots, a little lichen 

 and a few small twigs of spruce fir. Lined with fine grass, and over 

 this is placed a thick lining of soft white feathers, apparently belong- 

 ing to the domestic goose." (N orris' Grand Menan specimens.) 



Eggs. 4 or 5. Ground color white, creamy white to dull 

 grayish white, speckled, spotted, and blotched with various shades of 

 reddish brown, lilac, and purplish gray, in most cases forming a wreath 

 around large end but many eggs are well marked all over. A rather 

 dull colored egg, but the markings are bold and well defined. Size ; 

 average, -7ix.52; extremes measure -74X.52, .67X.53, .6o,x.5o and 

 70X.54. (Figs. 62-64.) 



Nesting Dates. Lancaster, N. H., June 28 (Spaulding) ; Bangor, 

 Me., probably breeds about June 20, but no nests yet found. (Knight) ; 

 Grand Menan, N. B., June n-June 20 (/. P. N.). 



BIOGRAPHICAL REFERENCES 



(i) J. P. N[oRRis], A Series of Eggs of the Blackpoll Warbler, Orn. 

 and O61., XV, 1890, 41. 



PINE WARBLER 



DENDROICA VIGORSI VIGORSI (Aud.) Plate XXIV 



Distinguishing Characters. In the adult <$ of this comparatively large 

 Warbler the underparts, except the lower belly, are brignt greenish yellow, 

 the breast, particularly in worn plumage, often being obscurely streaked, the 

 iipperparts bright yellowish green; the wing-bars soiled whitish. The adult 

 V is dusky olive above with a decided brownish tinge, soiled whitish below 

 the breast tinged with yellow. In the young the upperparts are decidedly brown, 

 the wing-coverts are brownish white but well-defined and will serve to distin- 

 guish the species from several species of Helminthophila which it superficially 

 resembles. Length (skin), 5.00; wing, 2.80; tail, 2.20; bill, .42. 



Adult <$, Spring. Above bright yellow-green; narrow line from bill over 

 eye yellow; inner webs of two outer tail-feathers with white patches at end; 

 outer web of outer feather usually white basally ; wings margined with grayish, 

 the median coverts tipped, the greater coverts terminally margined with soiled 

 whitish ; underparts bright greenish yellow becoming white on the belly, the 

 breast sometimes obscurely streaked. 



Adult <$, Fall. Similar to adult c? in Spring but browner above, slightly 

 veiled with whitish below. 



Young $, Fall. Not appreciably different from adult c? in Fall. 



Adult ?, Spring. Much duller than the cT; above dusky olive-green tinged 

 with brownish, the nape grayish, no yellow about eye, cheeks grayish, tail 

 with less white, wing-bars less pronounced than in c?; underparts soiled gray- 

 ish white, the breast more or less tinged with yellow, the flanks with brownish. 



Adult $, Fall. Similar to adult 9- in Spring but browner above and on 

 flanks; yellow on breast veiled with whitish; wing-bars browner. 



