T iii ANALYSIS OF THE CONTENTS. 



Page 



OMNIVOROUS BILLS. General structure Compared with 

 other hills Bill of the raven The raven, the crow, the 

 rook Diversity of bills Horn-bills Birds of paradise- 

 Tribes analogous in habit . . . 173184 

 CONIROSTRBS. Hard-billed birds their general characters 

 Illustrations Tits Larks Finches Crossbills Action 

 of the Crossbill . . . 184 192 

 INSECTIVOROUS BILLS. General characters of their owners 

 Their chief haunts Shrikes Thrushes Various other 

 races ..... 192196 

 TENUIROSTRES. The food and habits of their owners 



Nuthatch Creeper . . . 196198 



FISSIROSTRES. Their bills Food Mode of feeding-Day 



feeders Night feeders ... . 198, 199 



SVNDACTYLI. Variations of their bills Their habits Bee- 



eaters Kingfishers Other races . . 199201 



SCAN-SOUKS. Have no common type of the bill Wood- 

 peckersAdaptation of animals to peculiar localities- 

 Man an exception Bill of Woodpecker Of Cuckoo Of 

 Toucans Of the Parrot family Remarks on the last- 

 Comparisons ; . . . 201213 

 PIOKONS. Habits of the birds Character of their bills 213215 

 GALLINACEOUS BIRDS. Their bill Its adaptation to the 



habit and harmony with the other structures . 215,216 

 SHORT-WINOED BIRDS. Resemblance of those to the Gal- 



linidse Ostriches Agamis Apteryx . . 21 6, 217 



PRESSIROSTRES, or Compressed Bills Their common re- 

 semblance to each other Their differences . .818 

 CULTIROSTRES. General characters Differences of form 



Remarkable instances ' . . . 2)8,219 



LONO-BI LLS. Their differences Ibis Woodcocks Avocet 



219222 



LONO-TOED BIRDS. Haunts and habits of these birds 

 Aquatic ones Production of horn on the forehead Land 

 ones Peculiar races .... 922, 223 

 AQUATIC BIRDS. Geese, swans, and ducks Diving ducks- 

 Mergansers Divers Gannets Cormorants Petrels 

 Skuas Gulls Terns . . . 223 23 



GKNBRAL ANALOGIES OP BIRDS. Ground birds of the land 

 and water Omnivorous of ditto Air birds ditto Adap- 

 tations for the land and for the water The effects of these 

 upon each other Inferences from these agreements and 

 differences . . . . 234240 



