Bird behaviour psychical and physiological / by Frank Finn.

  • Finn, Frank, 1868-1932.
Date:
[1919]
Catalogue details

Licence: In copyright

Credit: Bird behaviour psychical and physiological / by Frank Finn. Source: Wellcome Collection.

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    CONTENTS CHAPTER I Importance of subject—Incompleteness of our information about even the commonest species—Distinction between major and minor habits—General activities or tricks of manner— Greater importance of the latter in classification—Errors to be avoided in observation . . . . pp. 1-12 CHAPTER II The locomotion of birds—Hopping and walking—Reasons for adoption of these gaits-—Why waterfowl waddle—Swimming and diving—Perching and climbing—Different methods of performing these actions—Specialized birds which have taken to different habits, as Ground-Parrots and Land Geese—Flight and its varieties—Characteristic methods according to group and size—Sailing and soaring flight—Speed . pp. 13-32 CHAPTER III The nutrition of birds—Various kinds of food, animal and vege- table—Methods of and adaptations for obtaining it—Changes of diet-—Gluttony of some species—Power of discrimination among foods, both vegetable and animal—The much-discussed relations of birds to insects, especially butterflies pp. 33-76 \