1100 REPORT OF STATE GEOLOGIST. 



It frequents the undergrowth of woodlands and the wooded borders 

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

 ground with Tennessee Warblers, weedy woods-pastures and more 

 open woodland, 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-tsli-'tshea. 



292. (686). Sylvania canadensis (LINN.). 



Canadian Warbler. 

 Synonym, CANADIAN FLY-CATCHING WARBLER. 



Head of Canadian Warbler. Natural 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 tail coverts, white; a black streak on each side of 

 throat, united by a row of black spots across the breast; wings 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. 



RANGE. America, from Ecuador north over the eastern United 

 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. 4-5; 

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

 reddish, in varying shades; rufous and rufous-brown, heaviest at 

 larger end; .68 by .51. 



The Canadian Warbler is a tolerably common migrant, varying in 

 numbers 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, they frequent low situa- 



