Inder. 
Oreospiza chlorura, 103. 
Oriole, Arizona hooded, 7, 87. 
Bullock, 7, 9, 87. 
Scott, 21, 85. 
Orthocarpus pilosus, 7, 47. 
Osgood, W. H., 144, 247, 272. 
Osprey, American, 215. 
Otocoris alpestris actia, 82. 
Otospermophilus beecheyi fisheri, 
143. 
Otter, land, 345. 
sea-girt, 262. 
Otus flammeola idahoensis, 59. 
Ovis nelsoni ?, 135. 
Owl, American long-eared, 59. 
dwarf flammulated screech, 16, 
59. 
horned, dusky, 216. 
Pacifie, 60. 
ruddy, 387. 
pigmy, 50. 
spotted, 50. 
Oxyechus vociferus, 56. 
Oxytropis oreophila, 7, 14, 41. 
Oystereatcher, black, 378. 
Pandion haliaétus carolinensis, 215. 
Parsnip, cow, 354. 
Passerculus sandwichensis alaudi- 
mus, 93, 364, 398, 419, 421, 
425, 
nevadensis, 312. 
savanna, 399, 425. 
sandwichensis, 227. 
Passerella iliaca iliaca, 425. 
sinuosa, 361, 364, 405, 419, 
421, 425. 
townsendi, 232, 425. 
stephensi, 99. 
Passerina amoena, 104. 
Pedicularis semibarbata, 6, 47. 
Pelidna alpina sakhalina, 201. 
Pennyroyal, 45. 
Penthestes atricapillus turneri, 364, 
413, 420, 421. 
gambeli baileyae, 124. 
hudsonicus hudsonicus, 421, 425. 
rufescens rufescens, 238, 414, 
425. 
vivax, 361, 364, 414, 419, 421, 
425. 
Pentstemon Bridgesti, 47. 
cesius, 7, 47. 
labrosus, 6, 47. 
Palmeri, 6, 47. 
ternatus, 6, 48. 
Peppermint, 45. 
Perodipus agilis, 19, 152. 
Perognathus californicus dispar, 9, 
154. 
formosus, 153. 
panamintinus bangsi, 153. 
Peromyscus boylii, 9. 
rowleyi, 145. 
hylaeus, 246, 255. 
macrorhinus, 256. 
sitkensis, 246, 255. 
sonoriensis sonoriensis, 144. 
stephensi, 145. 
truei truei, 145. 
Petrel, fork-tailed, 369. 
Petrochelidon lunifrons, 106. 
Pewee, western wood,-9, 13, 16, 77. 
Phainopepla, 107. 
Phainopepla nitens, 107. 
Phalacrocorax pelagicus, 191, 363, 
370. 
resplendens, 192. 
robustus, 192. 
Phalaenoptilus nuttalli californicus, 
66. 
Phalarope, northern, 200, 374. 
red, 374. 
Wilson, 55. 
Phalaropus fulicarius, 363, 374. 
Phaleris psittacula, 363, 366. 
Phoebe, black, 75. 
Say, 19, 75. 
Phrynosoma blainvillii, 162. 
Phyllodoce glanduliflora, 354. 
Pica pica hudsonia, 364, 393, 419 
421, 
Picea sitchensis, 350, 357. 
Picoides americanus, 218. 
americanus, 421, 
fumipectus, 181, 217. 
Pigeon, band-tailed, 50. 
Pine, Coulter (or big-cone), 9, 30. 
Jeffrey (or black), 11, 19, 20, 31. 
limber, 14, 18, 32. 
sugar, 8, 11, 16, 31. 
tamarack (or lodge-pole), 12, 16 
15, 32. 
yellow, 8, 9) Il) 1216; 17. 18; 
203i 
Pinicola enucleator alascensis, 425. 
flammula, 222, 364, 395, 419, 
421, 425. 
Pifion, 18, 19, 20, 31. 
Pintail, 194. 
Pinus coulteri, 6, 30. 
flexilis, 7, 32. 
Jeffreyi, 6, 31, 
Lambertiana, 6, 31. 
monophylla, 6, 31. 
Murrayana, 7, 32. 
ponderosa, 6, 31. 
Pipilo crissalis senicula, 103. 
maculatus megalonyx, 102. 
Pipistrellus hesperus, 159. 
Pipit, American, 236, 411. 
Piranga ludoviciana, 105. 
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