332 
COMPARATIVE ZOOLOGY. 
- A^WAv 
The legs are long or strong, and the knee is free from the 
body. The hind 
toe, when present, 
is small and ele¬ 
vated. 
5. Grallatores, or 
Wader s.—These 
are readily distin¬ 
guished by their 
long and bare legs. 
Generally, also, the 
toes, neck, and bill 
are of proportion¬ 
ate length, and the 
tail short. They 
feed on small ani¬ 
mals, and, with a 
few exceptions, fre¬ 
in flying, their legs are 
stretched out behind, while in most other Birds they are 
folded under the body. 
Such are the Rails, 
Cranes, Herons, Storks, 
Ibises, Stilts, Snipes, 
Sandpipers, and Plov¬ 
ers. 
6. Rasores , or Scratch¬ 
es.— As a rule, this 
order, so valuable to 
Man, is characterized 
by a short, arched bill; 
short and concave 
wings, unfitted for pro- Flo . S n._ RaU . or Marsh Hen (Kailua 
tracted flight; Stout United States. 
legs, of medium length; and four toes, the three in front 
Fig. 313.—Heron ( Ardea). 
quent the banks of rivers. 
