342 NORTH AMERICAN BIRDS. 



Adult : Above varying from greenish gray to olive- 

 green, or even (in some winter specimens) almost 

 russet-olive, the top of the head similar to the 

 back; wing-bands buff or buffy whitish; lower 

 parts white, more or less strongly tinged with sul- 

 phur-yellow laterally and posteriorly, and (usu- 

 ally very faintly) shaded across breast with olive 

 or grayish. Young : Similar to adult, but with 

 wing-bands deeper ochraceous, and feathers of 

 upper parts (especially crown and rump) nar- 

 rowly tipped with paler, producing an inconspic- 

 uous mottling. Male: Wing 2.75-3.10 (2.83), tail 

 2.30-2.70 (2.49), culmen .62-.69 (.66), bill from 

 nostril .32-.39 (.35), width at base .28-.30 (.30), 

 tarsus .59-.67 (.62). Female: Wing 2.55-2.70 

 (2.65), tail 2.25-2.35 (2.32). Nest a very thin, flat 

 structure secured between forks near the ex- 

 tremity of a (usually depending) branch, com- 

 posed of fine rootlets, tree-catkins, etc. Eggs 

 2-4, .71 X -53, pale creamy buff or creamy white, 

 sparsely speckled or spotted, chiefly on larger end, 

 with deep rusty brown or madder-brown. Hab. 

 Eastern United States ; south, in winter, through 

 eastern Mexico and Central America to Ecuador ; 

 Cuba. 

 465. E. acadicus (Gmel.). Acadian Flycatcher. 

 p. First quill usually shorter than fifth ; color olive or 

 grayish brown above — never distinctly greenish. 

 g 1 . Tail even, or very slightly rounded ; wing averaging 

 more than 2.60. (Length 5.50-6.50.) 

 h 1 . Adult : Above olive, usually decidedly grayer 

 on head ; wing-bands varying from dull 

 brownish gray, or grayish brown, to nearly 

 white ; lower parts white, tinged more or 

 less with sulphur-yellow posteriorly, and 

 shaded with olive-grayish on sides of breast ; 

 under wing-coverts very pale buffy yellow. 

 Young : Similar, but rather browner above 

 and more distinctly tinged with yellow be- 

 neath, the wing-bands deep buff, or ochra- 

 ceous. Male: Length about 5.80-6.25, wing 

 2.70-2.85 (2.75), tail 2.35-2.60 (2.51), culmen 

 .64-.73 (.69), bill from nostril .35-.40 (.38), 

 width at base .27-31 (.29), tarsus .65-. 72 

 (.68). Female : Length about 5.55-6.00, wing 



