BIRDS IN FLIGHT
Kingfisher and Young
BIRDS IN FLIGHT
BY
W. P. PYCRAFT
Zoological Department, British Museum (Natural History).
Fellow of the Zoological Society of London.
Hon. Member of the American Ornithologists' Union.
Associate of the Linnean Society.
Member of the Marine Biological Association of the United Kingdom.
Member of the Royal Anthropological Institute.
Author of “A History of Birds,” “The Infancy of Animals,” “The Courtshipof Animals,” “The Sea-shore,” Etc., Etc., Etc.
Illustrated by
ROLAND GREEN, F.Z.S.
LONDON
GAY & HANCOCK LIMITED
34 HENRIETTA STREET, COVENT GARDEN, W.C.2.
1922
All Rights Reserved.
| CHAPTER | PAGE | |
| I. | Concerning Wings | 1 |
| What a wing is—The quill feathers and their function—The skeleton of the wing—The muscles of the wing—The great air-chambers of the body—The Bat’s wing—The wing of flying Dragons—The wings of Dragon-flies and beetles. | ||
| II. | The First Bird | 15 |
| The ancestors of birds—The first known bird and its many remarkable features—The gradual evolution of the birds of to-day. | ||
| III. | The Sizes and Shapes of Wings and their relation to Flight | 21 |
| The evasiveness of flight—The size of the wing in relation to that of the body—Noisy flight—“Muffled” flight—The swoop of the sparrow-hawk—The “flighting” of ducks—The autumn gatherings of starlings and swallows—“Soaring” flights of storks and vultures—The wonderful “sailing” feats of the albatross—The “soaring” of the skylark—The “plunging” flight of the gannet, tern, and kingfisher. | ||
| IV. | Modes of Flight | 35 |
The movements of the wing in flight—Marey’s experiments—Stopping and turning movements—Alighting—“Taking off”—Hovering—The use of the tail in flight—The carriage of the neck in flight—And of the legs—The flight of petrels—The speed of flight—The height at which birds fly—Flight with burdens—Experiments on the sizes of the wing in relation to flight—Flight in “troops.” [Pg vi] | ||
| V. | Courtsh ... BU KİTABI OKUMAK İÇİN ÜYE OLUN VEYA GİRİŞ YAPIN!Sitemize Üyelik ÜCRETSİZDİR! |