INDEX 



903 



fern 189. 206, 228. 239. 243 



fern. Christmas 206 



fern, evergreen wood 198. 218. 220. 225. 227. 231. 237, 239. 243. 



244. 845 

 fern, polypody 206 

 fern, sweet 845 



fern family, as a 9onrce of grouse food 206 

 Ferris 14 



fertility (see also repnuliirlive ca[iai'ity^ 365, 513 

 Fiber zibethicus 578 

 fiber, a food component 2.17. 239. 845 

 Field. G. W. 15. 26. .10 



field data recorded (see also data; methods and lerliniques) 

 regarding adults 702 

 regarding broods 704 

 regarding nests 703 

 fighting 248. 268 



relation to breeding behavior 67, 269 

 relation to mainlenanre of social order 64, 268 

 filoplume 59, 7*6 

 filterable virus 404. 408 

 fir, balsam 115, 386 

 fire (see also man's aids) 14 



as a cause of nest morlality 527. 532 

 effect on forest succession 231. 393. 642 

 effect on grouse food plants 228. 2;i2, 393 

 effect on grouse food supply 228. 232 

 role in management 51. 599. 642. 650, 664 

 fisher 333 



Fisher. A. K. 194,343 



Fisher. L. W. 30. 423. 521. 557, 559. 561. .564. 568 

 fish hawk (see osprcy) 

 flagellates 409. 4.33 

 Fianigan. L. J, xxxv 

 flatworms 434 



flavor, of grouse as fond 191. 235 

 flea, bird 409. 435 

 Fleming. J. H. 324 

 flies 408. 4.17. 439, 495. 776 

 flight, crazv 248 

 flight distances 50. 167. 247. 253 

 flight, manner of 252 

 flight speed 248, 254 

 Flint. P. 14 



fluctuations in ahundance I sci- jilsn ft or lua I ions in general grouse 

 abundance) 



among buffers 325. 556. .567. .574, 578. 579 

 among predators 323. .567. 574. 578. 579 

 among wildlife in general 32.1. 556. 575, 578 

 variety of periodicities 578 

 fluctuations in general grouse abundance (sec aUo cycles; popula- 

 lion trends) 323 

 amplitude 558 



causes (see causes of Hu. iu;itiiin'i) 

 characteristics .558 

 control of 583 



duration of abundance and scarcity 555, 5fil. .5f>4 

 occurrence 6. 7, 11. 12. .5.55. .5.56. .571 

 periodicity 555. 561. .571 

 rate of change 555, 5(>0 



relation to behavior of local populations 555. 568, 571. 577 

 relation to population density (sec productivity, net) 

 sequence between regions 555. 567 

 synchronism 555, 565. 571 

 years of principal declines (1900-44) 566 

 flukes 409. 434, 671 



flushing distance (see distance grouse flush from observer) 

 fly larvae, raising 456 

 foamflower 206. 220, 227 

 FoUeit, R. E. 19. 23, 24 

 food conditions, recording 698 



food habits of grouse (see also feeding habitsl 181 

 competition with other speiics 230 

 materials studied 184 

 methods of study 182. 184. 706 



relation to other faclois of abundance 241. 511, 513 

 seasonal differences 182. L'l 1 

 studies of 30. 31. 183 

 food of grouse 



amount eaten 189 



chemical composition 237. 845 



choice in relation to nutritive value 238, 240 



effect of opening up the woodland 231 



effect on grouse distribiilion (local) 182, 229 



general availability 182. 227. 229. 528. 775 



items often considcied injurious 193 



miscellaneous items 188. 192 



monthly variations in food of chicks 224 



nutritive value 237 



of young grouse 182. 221. 415 



other vertebrates taken 188. 192 



principal chick foods 221 



regional differences in New York 217, 227 



relation of food composition to solar activity 242 



relation of food composition to weather 242 



relation to cycles 241 

 relation to health of the bird 235 

 relation to weight of the bird 37. 241 

 seasonal differences 182. 214. 227 

 types eaten 197 



variation throughout range of grouse 182. 220 

 variations in composition 237 

 variety of choice 182. 191. 198 

 yearly differences 182. 218 

 food plants 



distribution in New York 227 

 effect of lumbering on 233 

 habitat requirements 225, 227 

 relati<m lo cover types 227, 231 

 relation to forest succession 232 

 food requirements (gee also physiological studies) 37. 181 

 food shortages 182. 185. 229. 523. 5.12 

 food value of grouse 100 



possibility of poisonous effect 194 

 relation of flavor to diet 194. 235 

 foods, animal (see also various orders, families and species) 



(see Appendix, p. 859, for complete list of all species found lo 



have been eaten ) 182. 198. 212 

 amount consumed by individual birds 212 

 insect pests eaten (see also insect pests) 212 

 monthly variation in important species eaten by chicks 225 

 relative importance 198 



supply of insects available lor grouse chirks 214. 775 

 use by grouse chicks 221. 224. 415 

 variety ealcn 212. 213. 224 

 foods, plant (see also various families and specie<<) 



(see Appendix, p. 850, for complete list of all species found to 



have been eaten) 182. 198 

 amount connumcd by indivirlual birds 167. 189 

 monthly variation in important species ealen by chicks 224 

 parts eaten 215. 227 

 regional variation in New York of the ten must important 



groups 217 

 seasonal distribution of the ten most important groups 215 

 seasonal use of various species 214, 227 

 species mo»>t frequently taken 198 

 variety eaten 198 



yearlv differences in bulk taken of important species 218 

 Fnoie. I.. 562 



Forbes. E. B. 202. 816. 847. 848. 819 

 Forbes. S. A. 194 

 Forbush. E. H. xxxi. ID. 12. 13. 14. 30. 38. 98, 102. 252. 2.56. 



260. 262. 264. 269. 270. 292. 333. 3,38. 371. 375. 561. 572 

 Fordham, S. 22. 24. .30 

 forest, climax .53. 112. 386. .393. fi94 

 forest, sub-climax .53. 51 

 forest districts 687. 688 



forest management for grouse 387. 587, 599 

 Forest Practice Ad .598 



forest preserve (sec also Adirondack; Calskill) 684 

 forest products 587 



forest BtantI and game cover improvement 6.50, 777 

 forest succession 118. 386 

 forestry, control of insects and disea<>i-s 654 

 forests, national 682 

 forests. State 682. ()83 

 formic acid 195 

 Formica 213 

 Formicidae 213 



Fort Reliance (N. W. Terr.) 52. 56 

 Fortymile (Y. T.) 47 

 fossil records 36. 46. 272 



fowl, domestic 239. 242. 408, 412. H5. 116. 118. 419. 420. 423. 

 424. 426. 427, 428, 430, 434 



as a carrier of disease 385. 415. 417. 434. 435. 138. 439. 411 

 association with grouse 268. 290. 385 

 fowl, guinea 420. 426 

 fowl cholera 404. 415 

 Fox. .K. xxxvi 



fox (see also various species) 14, 313, 321. 323. 329. 330. 339. 

 350. 391. 417. 552. 630. 667. 669 



as a predator during adult period 308. .122, 337, .138. 348. 876 

 as a predator during nest period 307. 308. 314, 334. 347, 527. 



669. 710. 711. 876 

 as a predator of grouse chicks 335. 336. 876 

 fluctuations in abundance .328. .567. 579 

 food habits 308. 327. .3,19. 340. 341, .142, 344. 709 

 relation of variations in fox activity to adult mortality 322 

 relation of variations in fox activity to buffer abundance 308. 



322. 328. 670. 708 

 relation of variuiiims in fox activity to nest mortality 315 

 fox. arctic .123. 578 



fox. grav 314. ,324. 329. 332. 3,36. .137. 339. 381. 382. 683. 711. 875 

 fox. red 314. 323. 324. 329, 332, 336. 337. .139, 381, 382, 578. 



683. 711. 875 

 Foxborough (Mass.) 10.375 

 Fragaria 186. 198. 199 

 Fragaria virginiana 847 

 France 3 

 Franklin County (N.Y.) 19.558 



