472 AMERICAN WARBLERS. 



active, frequenting low growths, especially 

 willows. Song, a trill, sometimes a low 

 warble. 



534. CANADIAN WARBLER. 



Larger, 5.50, bluish above, yellow be- 

 neath; spots on crown; patch behind eye 



Fis:. 378 



Canadian Warbler. 1-3. 



and necklace of spots on breast (without 

 pendents), black, figs. 373 and 374. Female, 

 duller. Frequents swampy thickets. Song, 

 a warble of from three to six disconnected 

 notes. Breeds from elevated sections of 

 Mass, south along mountains to N. C.; west 



