344 NORTH AMERICAN BTRDS. 



Adult : Above olive, usually more grayish anteriorlj^, especially 

 on hind-neck ; wing-bands dull light grayish, more or less tinged 

 with olive; lower j^ai'ts varjdng from dull grayish white, 

 faintly tinged with yellowish on flanks, etc., to decided olive- 

 yellowish, the breast always strongly shaded with olive or 

 olive-grayish, and the throat never distinctly whitish (usually 

 distinctly grayish), llale : Length about 5.50-5.75, wing 2.60- 

 2.80 (2.72), tail 2.30-2.50 (2.38),'culinen .53-.59 (.56), bifl from 

 nostril .26-.29 (.27), width at base .22-.24 (.23), tarsus .60-.68 

 (.63). Female : Length about 5.25, wing 2.45-2.75 (2.61), tail 

 2.15-2.40 (2.25). JVest and eggs like those of E. minimus (?). 

 Hab. "Western North America, north to Lesser Slave Lake ; 

 south, in winter, to southern Mexico. 



468. E. hammondi (Xantus). Hammond's Flycatcher. 



c^. Outer web of outer tail-feather abruptly paler than inner web (usually 



distinctly dull whitish) ; culmen .58, or more ; tarsus usually more 



than .70. (Length 5.75-6.40.) 



d}. Colors otherwise much as in E. hammondi^ but averaging grayer, 



with paler (often distinctly whitish) throat. Male : Wing 



2.70-2.95 (2.83), tail 2.55-2.80 (2.67), culmen .62-.69 (.65), bill 



from nostril .32-.38 (.36), width at base .24-.27 (.26), tarsus .71- 



, .77 (.74). Female : Wing 2.55-2.75 (2.64), tail 2.50-2.65 (2.52). 



Nest usually in aspen bushes, similar in composition, etc., to 



that of E. minimus. Eggs .69 X 51, plain buffy white. Hab. 



"Western United States, south to southern Mexico, east to 



Rocky Mountains. 



469. E. obscurus (Swains.). Wright's Flycatclier. 

 d^. Deep brownish olive above, the wing-bands varying from olive 

 to pale olive-grayish ; lower parts dull yellow, shaded across 

 breast with olive-brown ; wing 2.92-3.00, tail 2.65-2.75, culmen 

 .60, bill from nostril .30, width at base .22-25, tarsus .68. Hah. 

 Southern Mexico (Orizaba ; city of Mexico). 



E. fulvipectus Lawk. Narrow-billed Flycatcher i 

 a^. Lower parts deep buff, deepening into ochraceous on breast and sides. 

 ¥. Upper parts deep hair-brown, tinged w^ith umber. 



c^ Lower parts soft pinkish buff, inclining to isabella-color on breast, paler 

 on throat and belly, the under tail-coverts nearly white ; wing 2.70, 

 tail 2.45, culmen .52, bill from nostril .28, width at base .21, tarsus 

 .60. Hah. Eastern Mexico and southern Texas (?). 



470. E. fulvifrons (Giraud). Fulvous Flycatcher. 



cl Lower parts bright ochraceous-buif, inclining to deep ochraceous on 



breast, and pale buffy yellow on belly, the throat buffy whitish and 



lower tail-coverts yellowish white ; wing 2.35-2.55 (average 2.43), 



1 Empidonax fulvipectus Lawr., Ann. Lye. N. Y. x. Feb. 1871, 11. 



