Vili CONTENTS. 
The Stork 
Remarks on the common Opinion 
‘Swallows and Sparrows... 
Warnings of Danger ° . 
Anecdote from Smellie is . 
Instructions in catching Prey. 
CHAPTER XV.—LANGUAGE OF BIRDS. 
‘Language, as referring to “er pa deg te 
The Richel Bird . / ° . ° 
Natural Notes of Alarm. ‘ d ° 
Theory of Darwin ‘ ° 
Variety in the Language of Birds ‘ 
Social Signals for congregating . 
Fables originating therefrom i, 
The Butcher-bird : . 
CHAPTER XVI.—sones oF BIRDS. 
Songs of Birds expressive of Joy ° 
Female Birds rarely Sing A 
Supposed Cause of Singing 7 
Recording . ‘a 
Winter and Autumnal Songs ° 
Vocal Organs of Song-birds ‘ 
The Wood-thrush and Song-thrush 
The Chaffinch, Dunnock, and Yellow-hammer 
Nightingales of the North and South. . 
Theory of Buffon refuted . ae 
Wood-thrush of America. : ‘ ° 
American Song-birds . s ° j ° 
e . ° ° e . ° . 
e e . e . 2 
CHAPTER XVII.—IMITATION AND MIMICRY. 
Remaks of Chesterfield 
Probable Explanation of Mocking i in Birds . 
The Polyglot-chat . 
The Blue-jay é Se oe 
The American Mocking: bird - . 
Colonel O’Kelly’s Gray Parrot : 
Testimony of the Rev. W. Herbert 
CHAPTER XVIIL—.oncrvity 
Physical Causes of Old Age Pe AY 
Diseases in a State of Nature. ° 
The Raven, the Pelican, and the Eagle ° 
Fabulous Accounts of the Eagle. . « 
OF 
