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 

 7ox.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 061., XV, 1890, 41. 



PINE WARBLER 



DENDROICA VIGORSI VIGORSI (Aud.) Plate XXIV 



Distinguishing Characters. In the adult c? of this comparatively large 

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

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

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

 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 d, 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 c?5 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 9, Fall. Similar to adult $ in Spring but browner above and on 

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



