AMER1CAJ5 WARBLERS. 117 



Genus. FLYCATCMING WARBLERS. Wilsonia. 



Size, small to medium, 4.75 to 5.70. Colors, i>ol<lon olive or 

 grayish above, with more or less black on crown; yellow beneath. 

 ^o winj? bands; tail spots, absent or present. Folded wings, not 

 reachinj;- beyond middle of tail. 



Bill, moderately flattened and provided with short bristles 

 at base. AV^ings not long but pointed. Eyes, large. These 

 warblers somewhat resemble flycatchers in habit They may 

 be divided into two gronps; A, in which the tail spots are 

 absent; consisting of two species, one breedmg chiefly north 

 "of New England, and one from Massachnsetts northward; B, 

 an which the tail spots are present, consisting of one species, 

 breeding from Connecticnt southwai'd. 

 A ; tail spots absent. 



Fig. 53. 





m^ 



/ 



Wilson's WarbleT. 



WILSON'S WARBLER. 



Wilsonia pusillus. 



Rate XI, Fig- 6, male; Fig. 5, female. 



Size, small, 4.75 to 5.50. Golden green above; yellow 

 below; crown black. Very active. A not very common mi- 

 grant in spring and fall ; breeds mostly north of our limits. 



