CONTENTS xiii 



PAGES 



— In other species — Wing modification in the 

 Manakins — Sounds made by air sacs or pouches 

 — The love displays of birds — Aerial displays of 

 Humming-Birds — Of Tyrant Birds — Love displays 

 of the Birds of Paradise — Of Bustards — The love- 

 posturing of the Argus Pheasant — The Bower 

 Birds — Their curious " bowers " — The dances of 

 certain Rails — Of the South American Jacana 

 — Of the Spur-winged Plover — Of certain Ducks — 

 Parades of plumage — The meaning and purpose 

 of this display — Sexual selection — The vitality, 

 excitability, and pugnacity of birds . . 212-242 



CHAPTER VII 



THEIR REPRODUCTION (nESTS) 



The unique character of birds' nests — The architecture 

 of Ratitas Birds — The nests of the Kingfishers — 

 The Hornbills — The Swifts — Edible nests — The 

 nests of the Humming-Birds — Nests of the 

 Passeriformes — Great variety in the nests of the 

 Passeres — Variation of nest-type in the same 

 species — Uniformity in the nests of species — The 

 architecture of the Wrens — Of the Swallows — Of 

 the Finches — Of the Starlings, Shrikes, Wax- 

 wings, Orioles, and Goldcrests — Nests of the 

 Tropical Oscines — In the Timeliidae — The Tailor 

 Bird — Nests of the Bulbuls, Cuckoo Shrikes, 

 Drongos and Greenlets — Of the Birds of Paradise 

 — Of the Sun-Birds — Of the Flower-peckers and 

 Sugar Birds — Of the Wood Warblers and 

 Tanagers — Of the Weaver Birds — Of the Ox 

 Birds and Hang-nests — Of the Broadbills — Of 

 the Pittas— Of the Tyrant Birds— Of the Cotingas 

 and Plant-cutters — The nest of the Oven Birds — 

 . The architecture in the Wood Hewer family — Of 



