110 HOW HE IS MADE 
Wings are not alike in shape. The wing of 
a swallow is long and narrow, while that of a 
hen or grouse is short and round. We can tell 
by the shape of a wing how a bird flies. 
A long, narrow, pointed wing shows that the 

Fig. 11. 
Wing of Swift. 
bird has an easy, skimming flight, — either he 
flies great distances, or spends hours at a time 
on wing (Fig. 11). 
The short round wing (Fig. 12) shows that 
a bird has a strong flight for short distances. 
These wings are 
ak found mostly on 
7 rather heavy birds, 
like grouse. 
The longest wings 
are seen on water 
birds, such as the 
petrel and the frigate-bird. The shortest, also, 
are found among water birds, those who swim 
more than they fly, as the auks. 
All the feathers of the wing are named, and 
Fic. 12. 
Wing of Sparrow. 
