1100 Eeport of State Geologist. 



It frequents the undergrowth of woodlands and the wooded l)orders 

 of streams, in spring, but in fall it is often found frequenting the same 

 ground with Tennessee Warblers, weedy woods-pastures and more 

 open Moodland, and even bushy fencerows. They are quite active, 

 taking much of their insect food upon the wing. Nuttall says their 

 song sounds like 'tsh-'tsh-'tsh-'tshea. 



292. (686). Sylvania canadensis (Linn.). 



Canadian Warbler. 



Synonym, Canadian Fly-catching Warblkr. 



Head of Caiiiidiiin Warbler. Natunil size. 



Adult Male. — Above, gray; wings, brownish; forehead and crown, 

 spotted with black; stripe from bill to eye and ring around eye, yellow; 

 below, yellow; lower t-ail coverts, white; a black streak on each side of 

 throat, united by a row of black spots across the breast; mngs and 

 tail, not marked with white. Adult Female. — Similar, but the mark- 

 ings less distinct. Young. — Similar to female, but black marks want- 

 ing; breast, streaked with dusky. 



Length, 5.00-5.75; wing, 2.50-2.65; tail, 2.20-2.40. 



Eange. — America, from Ecuador north over the eastern L'nited 

 States to Labrador and Manitoba. Breeds from Massachusetts, Penn- 

 sylvania, Ontario and Minnesota, north. Winters from Mexico, south. 



Nest, in woods or low growth, on the ground, in a depression or 

 among roots; of leaves, dry weed stalks, roots and hair. Eggs, 475; 

 white, .finely marked with dots and small spots of brown, purple and 

 reddish, in varying shades; rufous and rufous-bro^^^l, heaviest at 

 larger end; .68 by .51. 



The Canadian Warbler is a tolerably common migrant, varying in 

 nurnbers with the years. It is usually much more common, sometimes 

 even abundant, in fall. It rarely arrives before May 1, and often re- 

 mains until the last of that month. Like the other two species of this 

 genus, which are less common than this, tbey frequent low situa- 



