WOOD WARBLERS 401 



from six to twelve feet from the ground. The gray vireo's song 

 Mr. Henshaw considers the finest of all vireo songs, as it has not only 

 beauty and variety of note but mellowness of expression. 



FAMILY MNIOTILTIDiE : WOOD WARBLERS. 



KEY TO (;ENKRA. 



1. Gape with conspicuous bristles. 

 2. Under parts mainly clear yellow Wilsoiiia, p. 427. 



2'. Under parts marked with red, orange, or yellow (except .^^T o 

 young- Cardellina). ^X 5 



Fig. 493. 

 i). Bill broad and much flattened at base . . Setopliaga, p. 429. 



o'. Bill narrow^ and deep at base. Face and throat red in 

 adults, brown in young . . . Cardellina. p. 4"]0. 



Fig. 494. 

 r. Gape without conspicuous bristles. 



2. Tarsus about equal to middle toe and claw ; 

 upper parts conspicuously streaked with 

 black and w hite . . Miiiotilta. p. 402. 

 Fig. 495. Fig. 496. 



2'. Tarsus longer than nnddle toe with claw ; ^^^2==:::--^^ 

 tipper parts not distinctly streaked with <C^\\ i 

 black and wliite. pj^ ^^^ 



:>. Bill deep, and strongly curved . . Icteria. p. 42(5 



Bill not deep, nor strongly curved. 



Fig. 498. 4. Bill narrowly wedge-shaped. 



% 



5. Rictal bristles obvious : u]i|)or i)arts blue with 

 olive patch . . . Compsotlilypis. p. 4(>(;. 



Fig. 499. .")'. Rictal bristles obsolct.": upju'i i)arts not blue 



with olive patch , Helminthopliila, p. 402. 



^^ 



4 . Bill slenderly conical. "^ l 



r,. Tail mark.Ml with whitr ..r v.-How, Kip. 500. 



Dendroica, p. 407. 

 ')'. Tail not mark«'d with white or yellow. 



0. Tarsus h'ss tlian one tliird as long* as wing;; 



under parts streaked . . Seiurus, p. 42:5. 



. Tarsus decidedly more than (inc third ;is long; 



as wing- ; under parts not stif.ikcd ; jiartly 



y.lh.w Geothlypis. p. 121. 



