Оглавление
John H. Robinson. Our Domestic Birds: Elementary Lessons in Aviculture
Our Domestic Birds: Elementary Lessons in Aviculture
Table of Contents
PREFACE
CHAPTER I. BIRDS AND THEIR RELATIONS TO MAN
CHAPTER II. CHARACTERS AND HABITS OF BIRDS RELATED TO USE
CHAPTER III. SPECIES AND THEIR DIVISIONS IN DOMESTIC BIRDS
CHAPTER IV. FOWLS
CHAPTER V. MANAGEMENT OF FOWLS
Small Flocks on Town Lots
Small Flocks on Ordinary Farms
Large Stocks on General Farms
Intensive Poultry Farms
Broiler Growing
Roaster Growing
Intensive Egg Farming
Poultry Fanciers' Farms
CHAPTER VI. DUCKS
CHAPTER VII. MANAGEMENT OF DUCKS
Small Flocks on Town Lots
Small Flocks on Farms
Market Duck Farms
Duck Fanciers' Methods
CHAPTER VIII. GEESE
CHAPTER IX. MANAGEMENT OF GEESE
Small Farm Flocks
Large Flocks of Geese on Farms
Goose-Fattening Farms
Growing Thoroughbred Geese for Exhibition
Growing a Few Geese on a Town Lot
Growing Wild Geese in Captivity
CHAPTER X. TURKEYS
CHAPTER XI. MANAGEMENT OF TURKEYS
CHAPTER XII. GUINEAS
CHAPTER XIII. PEAFOWLS
CHAPTER XIV. PHEASANTS
CHAPTER XV. SWANS
CHAPTER XVI. OSTRICHES
CHAPTER XVII. PIGEONS
CHAPTER XVIII. MANAGEMENT OF PIGEONS
CHAPTER XIX. CANARIES
Management of Canaries
CHAPTER XX. DISTRIBUTION OF MARKET PRODUCTS
CHAPTER XXI. EXHIBITIONS AND THE FANCY TRADE
CHAPTER XXII. OCCUPATIONS RELATED TO AVICULTURE
INDEX
Отрывок из книги
John H. Robinson
Published by Good Press, 2021
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INDEX
Mechanism of the wing. In its structure and in the muscular power that moves it, the wing of a bird is a wonderful piece of mechanism. A bird in flying strikes the air with its wings so rapidly that the movements cannot be accurately counted. The heron, which is a slow-flying bird, makes from one hundred twenty to one hundred fifty downward strokes of its wings a minute. As each downward stroke must be preceded by an upward stroke, this means that the wings make from two hundred forty to three hundred separate movements a minute. In such swift-flying birds as the pigeon the movements of the wings can be distinguished but cannot be counted. The fastest movements of the wings are not made by the swiftest fliers. In order to fly at all some land birds with comparatively small wings have to move them so fast that the movements make a blur and a whirring noise. The partridge is an illustration of a bird of this class.
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