HELMINTHOPHILA. 489 



olive-greenish; length about 4.70-5.00, wing 

 2.22-2.44 (2.38), tail 1.82-2.00 (1.95). Eggs 

 .63 X -49, colored like those of H. celata. 

 Hob. Pacific coast, breeding from coast 

 ranges of southern California to Kadiak ; 

 south, in winter, to Lower California and 

 western Mexico, and eastward during mi- 

 grations to Colorado, Arizona, etc. 



646a. H. celata lutescens Eioaw. 

 Lutescent Warbler. 



A distinct white, or yellowish white, orbital ring; 

 lower tail-coverts pure (though sometimes rather 

 pale) gamboge-yellow, without concealed grayish 

 streaks ; rest of lower parts pure gamboge-yellow 

 in adults (females with belly and flanks whitish), 

 paler and duller yellow (deepest on breast), but 

 without indication of streaks, in immature speci- 

 mens ; crown-patch, when present, chestnut. 

 A 1 . Less brightly colored, the rump and upper tail- 

 coverts less yellowish olive-green, and lower 

 parts less intense yellow; wings and tail 

 shorter. Young: Plain greenish olive above 

 (duller anteriorly), the middle and greater 

 wing-coverts distinctly tipped with pale olive- 

 buffy ; anterior and lateral lower parts plain 

 light olive, the belly and lower tail-coverts 

 pale buffy yellow. Length about 4.20-5.00, 

 wing (male) 2.30-2.45 (2.37), tail 1.85-1.90 

 (1.87). Eggs .61 X -47, colored like those of 

 H. celata. Sab. Eastern North America, 

 breeding from northern United States north 

 to Hudson's Bay and interior of British 

 America ; accidental in Greenland ; in winter, 

 south to eastern Mexico and Guatemala. 



645. H. ruficapilla (WiLS.). 

 Nashville Warbler. 



A 2 . More brightly colored, the rump and upper tail- 

 coverts more yellowish olive-green, the lower 

 parts richer gamboge-yellow ; wings and tail 

 longer; length about 4.75, wing (male) 2.40- 

 2.55 (2.47), tail 1.90-2.00 (1.97). Hob. Western 

 United States, from Eocky Mountains to Pa- 

 cific coast; in winter, south to western Mexico. 

 645a. H. ruficapilla gutturalis EIDQW. 

 Calaveras Warbler. 



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