CHAPTER VII 
BIRDS 
90. Bird Characteristics. — The front legs of birds are 
modified into wings. Among some birds, like the penguins 
(pen'gwinz) of the Antarctic region, the wings are not used 
for flying but to assist in swimming. In others, like the 
eagles and condors, the expanse of the wings is sufficient to 
enable them to fly away with young lambs and large fish. 
Between the small wings of the penguin and the expanse of 
the wings of the eagle and condor there are many variations. 
Bird wings are adapted to the needs of their owners. 
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