CONTENTS. 



Page 

 CHAPTER I. 



Habits of cleanliness in Birds 1 



Small animals the most cleanly . . 1 

 Rump-gland according to Willughby ... 3 

 Argument of Reaumur against its supposed use . . 4 



Experiment by J. R 6 



Pulverizing Birds ..,,.. 8 

 Abreuvoir of the Continent . . . .10 



Washing among young birds . . . .11 



Serrated claws of Herons and Night-jars . .14 



Anecdote of a Swallow. . . . . .20 



Use of the tongue as a cleaning instrument . . 20 



Analogy in Quadrupeds 21 



Analogy from the grub of the Glow-worm . . 23 



CHAPTER II. 



Birds, solitary and gregarious, on account of food . . 27 

 Instance from Sheep , . . . . .28 

 Turkey Buzzard and Black Vulture . . .30 



Anecdote from Wilson 32 



Anecdote from Ord ...... 34 



Town Sparrows 35 



Sparrow, Crow, and Stork courts . . . .37 



Rooks appoint sentinels 38 



Leader of the Cranes 39 



Watch of the Golden Plover 41 



