LIST OF TABLES 



Number Title Page 



1 A Chronology of Local ok General Causes of Grouse Scarcity as Listed by 



Two OR More Authors 14 



2 Records and Results of Grouse Liberations Known to the Lnvestigation IH 



3 Known Attempts to Rear Ruffed Grouse in Captivity from Eggs Collected 



in the Wild— 1879-1942 22 



4 Known Attempts to Rear Ruffed Grouse in Captivity from Eggs Secured 



FROM Hand-Raised Birds — 1875-1942 24 



5 Recent Ruffed Grouse Investigations 30 



6 Comparison of Visual Sex Differences in Ruffed Grouse 45 



7 A Generalized Breeding Behavior Pattern Covering Adult Male Ruffed 



Grouse in Captivity Compiled from a Study of 78 Individual Patterns 69 



Ji Physico-Chemical Properties of Grouse Eggs Collected from the Ithaca, 



New York. Region— 1936-1940 74 



9 Chemical Composition of 189 Newly Hatched Grouse Chk k> Collected 



FROM the Ithaca, New York, Region— 1936-1940 76 



10 Average Monthly Weights of 394 Adult and 108 Young Grouse Collect- 



ed in New York State— 1931-1941 '^1 



11 Average Weekly Weights, in Grams, of 8 Male and 7 Female Hand-Reared 



Grouse Chicks 94 



12 Length of Central Tail Feathers in Adult Grouse from New York State 98 



13 Explanation of the Cover Types and Symbols Used in the Ruffed Grouse 



Investigation 120 



14 Type of Cover Used by Grouse Broods Connecticit Hill Area— 1930-1936 140 



15 Types of Cover Used by Adult Grouse— Connecticut Hill Area— 1930-1936 152 



16 Relationship of the Frequency with which Edges Occur to the Average 



Level OF Spring Populations ON 12 Sections of the Connecticut Hill 



Area— 1930-1942 . 172 



1 7 Relationship of the Number of Cover Types within 100 Feet of Broods 

 Contacted to the Probability of Contact as Determined by Random 

 Sampling — Connecticut Hill Area — 1930-1942 172 



18 Relation of Grouse Flushes to Edges in Planted Coniferous Plantation and 



IN Natural Woodlands — Luther Preserve — 1933-1934 174 



19 Major Studies of the Food Habits of Ruffed Grouse 183 



20 Seasonal and Regional Distribution of the 1.093 Adult Grouse and 540 



Chicks. Collected and Analyzed for Food Habits Studies — Entire 

 State— 1931-1941 184 



21 Average Volumes, in Cubic Centimeters, of the Crop and Gizzard Contents 



of 1,093 Adult Grouse, by Season and Relation — New York 186 



22 Seasonal Variation in the Number of Food Items Per Individual Crop and 



Gizzard Taken by Grouse in New York 191 



23 Volumetric Percentage of Gravel in the Gizzard of 1.093 Adult and 540 



Chick Grouse, for Various Seasons of the Year and Regions of the 

 State 193 



24 Properties of Some Poisonous Plants Eaten by Grouse 195 



