INDEX 



467 



Stock management continued. 

 in good season, 424 

 in bad season,, 424, 431 

 methods,, 422 

 healthiness to be considered, 433 



and results of nesting, 422 

 migration as affecting, 442 f 

 necessity for co-operation, 432 



rules for, 432 



objects to be aimed at, 432 

 sickly birds in autumn may be 



spared, 433 f 

 " cheepers" should be killed out, 



434 



old birds undesirable, 437 f 

 ratio of young and old, 439 

 artificial improvement, 441 

 by fresh blood, 441 f 

 migration and re-stocking, 441 f 

 where Grouse non-migratory, 444 

 egg-shifting, 445 



importing birds and eggs, 441, 445 

 hand-reared birds, 446 

 summary of conclusions, 446 

 Stomach, 165 n 



Syngamus trachealis (" Gapes- worm"), 

 in Grouse, 199 



TAENIA CALVA, see Davainea urogalli 

 Tcenia cesticillus, see Davainea cesticillus 

 Tcenia microps, see Hymenolepis microps 

 Tapeworm, see Cestoda 

 Tapeworm, large, see Davainea urogalli 



small, see Hymenolepis microps 

 Temperature (body), of Grouse, 215 

 Tentsmuir, 106, 316 

 Testes, 75, 177 



effect of disease on, 177 

 Threadworm, see Trichostrongylus and 



Trichosoma 



Ticks, on Grouse, 191 (see Ixodes) 

 Toxemia, 219 f 

 Toxins, helminthic, 221 

 Trichomonas eberthi, 205 



in csecal contents, 205 

 Trichosoma longicolle, 201 



less common than Trichostrongylus, 

 174, 201 



habitat duodenum, 167, 173, 202 



structure, 202 



pathological effect small, 174, 202 



but allied to dangerous parasite in 



man, 201 

 Trichostrongylus pergradlis, 200 f, 206 



cause of ' ' Grouse disease " in adults, 

 201, 209, 220 



habitat caeca, 173, 175, 201, 208 



Trichostrongylus pergradlis continu ed. 

 numbers present, 208, 323 

 methods of counting, 208 

 almost always present, 208 

 characters, 206 

 life history, 221 ff, 324 

 development, 222 



within host (morula), 222 

 outside host, 223 

 artificial cultivation, 223 

 ovum, development of, 224 



moisture necessary to, 107, 223, 



237 



effect of drought on, 223, 236 f 

 embryo, structure of, 226 

 first ecdysis, 227 

 quiescence during cold weather, 



239 



metamorphosis, 227 

 larvae, 228 



encystment, 230 

 migrations, 231 



on heather, 107 

 synopsis of, 232 



larvae, experimental administra- 

 tion of, 233 



effect of frost on, 236, 325 

 of drought on, 236, 325 

 of sea spray on, 325 

 maturity and reproduction, 224, 



234 



methods of destruction, 237 

 Trypanosoma eberthi, see Trichomonas 

 eberthi 



UNDERSIZED birds, 241, 437 



VERMIN, 18, 403 ff 

 list of, 405 ff - 

 keepers' duties, 402 

 " balance of Nature," 403 

 sometimes beneficial, 405 

 vermin-killing and " disease," 403, 



404 



tracking in snow, 402 

 methods of destruction, 405 ff 

 golden eagle, 22, 410 

 fox, 405 

 stoat, 406 

 weasel, 408 

 polecat, 408 

 hedgehog, 408 

 cat, wild, 408 

 cat, domestic, 408 

 peregrine, falcon, 408 

 crow, 408 f 

 rook, 409 



