671. Dendroica vigorsii 
PINE WARBLER. 5 1-2 inches 
Male. Above olive-green ; wig bars and tail spots white. Below 
yellow. Female. Similar, but colors duller. 
Resembles the Nashville; look for white markings on Pine War- 
bler. Common in Massachusetts, in pitch pine woods. Arrives 
about April 10. 
Song. A loud trill suggesting the Chipping Sparrow, but it has 
a richer quality. 
Nest. Usually near the end of a pine tree branch. 
Breeds. In southern New England. 
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