CHAPTER IV 



FOOD HABITS AND REQUIREMENTS 



By Gardiner Bump and Jon\ C. Jones 



STUDIES OF GROUSE FOODS 

 FEEDING HABITS 



Feeding Periods — Feeding Peciliarities — Caution in Accepting New Foods — 

 Amount of Food Eaten — Variety of Choice — Gravel Consumption — Foods Often 

 Considered Injurious — Effect of Certain Poisonous Chemicals. 



DIET 



Foods Eaten and Families Represented — Plant Fouds — Families — rose — birch — wil- 

 low — beech — heath — sumach — sedge — honeysuckle — maple — composite — dogwood — lent 

 — buckwheat — saxifrage — grape — grass — -buttercup — madder — legume — jewel-weed — An- 

 imal Foods — Seasonal Differences in Food Hauits — Regional Variations in Foods 

 Eaten — Yearly Variations in Consumption of Food Items — Variations in Diet 

 Throughout the Range — Food ok the Young — Principal Chick Foods — Monthly 

 Variations in Summer Chick Foods. 



DISTRIBUTION AND HABITAT REQUIREMENTS OF GROUSE FOOD PLANTS 



FOOD AVAILABILITY AND SHORTAGES 



EFFECT OF FOOD ON GROUSE DISTRIBUTION 



COMPETITION WITH OTHER SPECIES FOR FOOD 



EFFECT OF OPENING UP THE WOODLAND ON FOOD SUPPLY 



Natural Openings — Man-made Openings. 



FOOD AND FLAVOR 



FOOD AND ITS RELATION TO HEALTH 



Chemical Composition of Some Grouse Foods — Crude Protein — Fats — Nitrogen-free 

 Extract — Crude Fiber — Ash — Vitamins — ^Differences in Chemical Composition — Re- 

 lation ok Food to Weight — Relation ok Food to Cycles. 



WATER REQUIREMENTS 



