AMERICAN WARBLERS. 89 



BLUE-WINGED WAKBLER. 



Helmiutliopliila pin us. 



Plate YII, Fig. 5, male ; Fig. 6, female. 



Size, 5.00 to 5.30. Greenish al)()ve; yellow beneath; a 

 nari'ovv ])lack ]Datch through eye. Wing bands and tail spots, 

 white. Occurs rather commonly in summer in southern Con- 

 necticut, and very casually in Massachusetts. 



Adult Male. Above, yellowish green. Wings and tail, bluish gray ; 

 wing bands usually separated and white. Top of head and lower parts, deep 

 yellow. Under tail coverts, lighter yellow. Line through eye, about its width, 

 black. 



Adult Femai^e. Generally similar, but duller, and with the yellow of 

 the top of the head more or less overwashed with greenish. 



Dimensions. Length, 5.00; stretch, 7.00; wing, 2.35; tail, LOO; bill, 

 .40 ; tarsus, .95. 



Comparisons. Readily distinguished by the unmarked under parts, re- 

 stricted markings about head, and bluish gray wings and tail. The wing 

 bands are sometimes yellowish, or even yellow, and are occasionally so wide 

 as to become fused 'ogether as in the Golden-wing. The absence of black throat 

 marking-; at once distinguishes this species from Lawrence's Warbler. 



Nests and Eggs. Nests placed on the ground, composed of weeds, 

 strips of bark, leaves, mo«s, etc., lined with finer material. Eggs, four to five, 

 oval, white, finely sprinkled with reddish brown, umber, and black. Dimen- 

 sions, .50 by .65. 



Gexekal Habits. This is one of the few New England 

 Warblers with which I have had a very limited experience, 

 but it does not appear to differ in any marked way from the 

 Cxolden-wing. The birds inhabit low undergrowth on the 

 borders of woodlands, and are occasionally seen in gardens. 



BiiSEDiXG Habits. The nesting site is usually in sections 

 on the margins of woodlands grown up to coarse grasses, 

 weeds, etc., among which the nest is placed on the ground. 

 It is occasionally concealed by overhanging blackberry or oth- 

 er vines. Like the Golden- wing the Blue-wing seems to pre- 



