1^ II.LUSTRATIOiJS. 



Page. 



Plate XXIX. Young ferruginous rough-leg 148 



XXX. Young golden eagle _ 149 



XXXI. Belted kingH.'^her.s - 156 



XXXII. Williamson sapsuckers - 158 



XXXIII. Black-billed magpies : - 164 



XXXIV. Water ouzel's nest ^ 188 



XXXV. Oatliirds 190 



XXXVI. Northern \ aried thrush 197 



XXXVII. Map of life zone In pocket. 



Text Fioure.s. 

 the mammals. 



Fic. 1. Transition Zone on Big Prairie in Xorth Fork Valley 20 



2. Head of 5-year-old ram from (.'hief Mountain 28 



:'. A fi\e-point Jjull elk in early winter 3-3 



4. Head of mule deer Inick from Hucklelierry Mountain 34 



5. Head of white-tail deer at Belton, Mont 35 



6. (I) Yellow-hellied chipmunk; (II) pale 13-lined ground stiuirrel; 



(III) mantled ground scpiirrel; all from museum skins 40 



7. Plan of underground den of Columbia ground squirrel 48 



S. Woodrat in his nest of moss and lichens in old cabin 56 



9. Woodrat nest on shelf in corner of cabin 57 



10. Cottonwood stump cut by beavers on Camas Creek (iO 



1 1 . Jumping mouse 70 



12. Pocket gopher of the genus Thoiiinmys 71 



13. Xorthern white-tailed jack rabljit in March 78 



14. Two mountain lions that will kill no more game 80 



15. Mountain red fox in Wind River Mountains, Wyoming - 84 



] 0. Mink photographed at old cabin above Kintla Lake 86 



17. (I) Dusky shrew; (II) masked shrew; photographed from alcoholic 



specimens 99 



18. (I) Brown bat; (II) long-legged bat; museum specimens 100 



THE BIRDS. 



19. Western grebe Ill 



20. Horned grebe 112 



21. Bed-breasted merganser 117 



22 . Hooded mergansei' 116 



23. Baldpate 118 



24. Green-fldnged teal 119 



25. Blue-'ivinged teal _ _ 120 



2(i . Cinnamon teal 1 20 



27. Pintail 120 



28. Canvas-back 121 



29. Scaup duck 121 



30. Golden-eyes on Yellowstone Lake 122 



31 . Buffle-head t24 



32. Western harlequin duck 124 



33. I-Iarle(iuin duck at Iceberg Lake 126 



34. White-winged scoter 127 



35. Ruddy duck 127 



36. Canada geese 128 



37. Bittern 130 



38. Young great blue heron VM 



39. Avocot. . - 132 



40. Wilson snipe 1 33 



41. Killdeer ]:U 



