The Senses 221 
and seize the earthworm for which it is seeking. The 
eyes have become unusually large in consequence of its 
nocturnal habits and in addition are placed far back 
upon its head, permitting a clear lookout for danger, 
above and even behind, while probing with its head held 
close to the ground. 
Fie. 159. Fic. 160. 
Fic. 159.—Photograph of living Woodcock with bill closed. 
Fic. 160.—Same with bill open, showing mobility of upper mandible. The bird 
is thus enabled to feel about and seize the earthworms deep down in the mud 
Thus ends our brief survey of the five senses; that of 
smell taking note of minute particles of matter diffused 
in the air; sight and hearing depending on vibrations of 
the atmosphere; the sense of taste detecting matter which 
is dissolved in water, and that of feeling making the bird 
cognizant of the qualities of bodies by actual contact. 
