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BLACK-THROATED GEEEN WARBLEE. 



667. Dendroica virens. 5 inches. 



Throat black; two wing bars and outer tail feathers 

 white; female, with little black on the throat. 



A common bird in pine groves in northern United 

 States, or during migrations in birch woods. I have 

 found them most abundant on side hills covered with 

 low growth pines. They seem to be very nervous and 

 are greatly excited if you appear near their nests. 

 They often have the habit of building several nests, 

 whether with the deliberate intent to deceive, or 

 whether because the first was not satisfactory as to 

 location, is not known. 



Song. Entirely different from that of any other 

 bird; a rather harsh zee repeated five times, with the 

 fourth and fifth syllables lower. 



Nest. Of rootlets and fine grasses, lined with hair; 

 placed high up in pine trees; eggs white with fine 

 brown specks around the large end (.60 x .50). 



Eange. Eastern North America, breeding from 

 southern New England and Illinois north to Nova 

 Scotia and Hudson Bay; winters in Central America. 



