Wings pele, 
drawn up, and the ostrich would scratch its body or head 
with this interesting finger relic! When the plume feathers 
of the wing are full grown, the foot or leg is thus used, 
Fig. 269.—Wing of Ostrich, showing reptile-like claws. 
the head or neck being rubbed against its roughened 
scales. 
The Great Auk—a sea-bird which has become extinct 
within the last sixty years—was without the power of 
flight, and its living allies, the Razor-billed Auks and 
Murrelets, have very small wings and are rather weak 
