American Museum of Natural History. 
MALE ENGLISH SPARROW (Passer domesticus). Length: 6 inches. Range : Cos¬ 
mopolitan in temperate climates. 
This bird destroys grain and fruit and drives away other birds. It was 
introduced into North America in 1851 to combat an insect pest—the potato 
bug. 
American Museum of Natural History. 
BLUEBIRD ( Sialia si- 
alis) . Length : 7 inches. 
Range: Northeastern 
North America. 
This harbinger of 
spring is one of the best 
liked birds. It nests in 
tree holes but is some¬ 
times driven out by the 
imported English spar¬ 
row. 
189 
