APPENDIX I. 409 



B. Crown not rufous or chestnut. 



a. Length 6'75 ; crown, blackish with a central whitish stripe ; throat 

 white ; breast gray ; a yellow spot before the eye ; haunts in and 

 about thickets and bushy woodlands ; song, a high, clear, musical 

 whistle ; call-note, chink .... 558. WHITE-THROATED SPARROW. 



b. Length 5 - 50 ; crown finely streaked ; a tree climber, winding patiently 

 up tree trunks in search of food ; tail-feathers pointed. 



726. BROWN CREEPER. 



c. Length 5 - 50; bill slender; a white line over the eye; tail carried 

 erect ; haunts reedy marshes ; call-note scolding ; song rippling. 



725. LONG-BILLED MARSH WREN. 

 II. Under parts white or whitish, streaked or spotted. 



1. Back streaked. 



A. Crown streaked ; under parts conspicuously streaked. 



a. Outer tail-feathers white, showing conspicuously when the bird flies ; 

 length 6-00 ; haunts dry fields and roadsides ; song loud and musical. 



540. VESPER SPARROW. 



b. Outer tail-feathers not white. 



J 1 . Length 6'00; plumage with a rufous-brown cast; spots on the 

 breast tending to fornj one large spot in its center ; haunts on or 

 near the ground, generally in the vicinity of bushes ; call-note, a 

 characteristic cha ; song musical 581. SONG SPARROW. 



b 3 . Length 6 - 00 ; no rufous in the plumage ; spots on the under parts 

 evenly distributed ; frequently seen feeding on buds or blossoms ; 

 call-note, a sharp chink, often uttered during flight ; song, a sweet, 

 flowing warble 517. PURPLE FINCH (Im.). 



B. Crown not streaked, rufous-brown ; under parts whitish with an in- 

 distinct blackish spot in the center of the breast ; Oct. to Apl. 



559. TREE SPARROW. 



2. Back not streaked. 



A. Upper parts rufous, olive-brown, or cinnamon-brown. 



a. Bill slender and thrushlike ; breast spotted with blackish. 



a 1 . Length 11-00 ; tail 5-00 ; wing-bars white ; upper parts, wings, and 

 tail uniform rufous ; haunts undergrowth ; sings from an exposed 

 and generally elevated position ; song loud, striking, and continuous. 



705. BROWN THRASHER. 

 b 1 . Length under 9-00; tail under 3-00; no wing-bars. 



J a . Breast and sides heavily marked with large, round, black spots ; 

 head and upper back brighter than lower back and tail ; call-note, 



a sharp pit or liquid quirt 755. WOOD THRUSH. 



b 3 . Breast with wedge-shaped black spots ; sides unspotted, washed 

 with brownish ashy ; tail rufous, brighter than back ; call-note, a 



low chuck 759J. HERMIT THRUSH. 



b*. Upper breast lightly spotted with small, wedge-shaped, black- 

 ish spots ; tail the same color as the back ; sides white ; call- 

 note, a clearly whistled wheeu . . . . 756. WILSON'S THRUSH. 



b. Bill short and stout; breast and sides heavily spotted with 

 rufous; length 7'00; haunts on or near the ground, generally in 



