Vlll ANALYSIS OF THE COHTENTS. 



Page 



Omxivorous Bills. — General structure — Compaxed with 

 other bills — Bill of the raven — The raven, the crow, the 

 rook — Diversity of bills — Horn-bills — Birds of paradise — 

 Tribes analogous in habit . . . 173 — 184 



CoNiRosTRES. — Hard-billed birds— their general characters 

 — Illustrations — Tits — Larks — Finches — Crossbills — Action 

 of the Crossbill . . . 1S4— ig2 



IxsECTivoRous BILLS. — General characters of their o-miers 

 — Their chief haunts— Shrikes— Tlmishes—Yaiious other 

 races ..... 192— 196 



Texpirostres. — The food and habits of their owners — 



Nuthatch— Creeper = . . 196— 19S 



Fissirostres.— Their bUls— Food— Mode of feeding— Day 



feeders — Xight feeders . . . . 198, 199 



Syndacttli. — Variations of their bills— Their habits — Bee- 

 eaters — Kingfishers — Other races . . 199 — 201 

 ScANSOREs.— Have no common type of the bill — Wood- 

 peckers — Adaptation of animals to peculiar localities — 

 Man an exception — Bill of Woodpecker — Of Cuckoo — Of 

 Toucans— Of the Parrot family — Remarks on the last- 

 Comparisons .... 201—213 

 PiGEOvs.— Habits of the birds— Character of their bUls 213—215 

 GALLixACEors BiRDS. — TlicLT biU — Its adaptation to the 



habit and harmony with the other stnictures . 215, 216 

 Short-wixged Birds. — Resemblance of those to the Gal- 



linidae — Ostriches — Agamis — Apteryx . . 216, 21/ 



Pressirostres, or Compressed BUls — Their com m on re- 

 semblance to each other — Their differences . .218 

 Cultirostres. — General characters — Differences of form 



— Remarkable instances . . . 218, 219 



LexG-BiLLS. — Their differences — Ibis — Woodcocks — Avocet 



219 — 222 

 Long-toed birds. — Haunts and habits of these birds — 

 Aquatic ones — Production of horn on the forehead— Land 

 ones — PecuUar races .... 222, 223 

 Aquatic birds. — Geese, swans, and ducks — Diving ducks — 

 Mergansers — Divers — Gannets — Cormorants — Petrels — 

 Skuas— Gulls— Terns .... 223— 23 i 

 Gbxeral axalogies of 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 . . . . 234—240 



