Oidemla deglandi, 39 



perspicillata. 39 

 Old-squaw, 38 

 Olor buccinator, 41 



columbianus, 41 

 Oporornis tolmiei, 149 

 Oreoscoptes montanus, 154 

 Oreospiza chlorura. 134 

 Oriole, Baltimore, 103 



Bullock, 103 

 Osprey, 67 

 Otocoris alpestris aicticola, 90 



alpestris enthymia, 17.5 



alpestris hoyti, 94 



alpestris leucolaema, 91 



alpestris merrilli, 93 

 Otus asio macfarlanei, 69 



maxwelliae, 69 

 Oven-bird, 148 

 Owl, Arctic Horned, 70 



Barred. 68 



Burrowing, 71 



Dusky Horned, 70 



Great Gray, 68 



Hawk, 71 



Long-eared, 67 



MacFarlane Screech, 69 



Richardson, 69 



Rocky Mountain Pygmy, 71 



Rocky Mountain Screech, 69 



Saw-whet, 69 



Short-eared, 68 



Snowy, 70 



Western Horned, 70 

 Oxyechus vociferus, 54 



Pandion haliaetus carolinensis, 67 



Partridge, Hungarian, 172 



Passer domesticus, 172 



Passerculus sandwichensis alaudinus. 117 



sandwichensis nevadensis, 118 

 Passerella iliaca iliaca. 132 



iliaca schistacea, 132 

 Passerherbulus lecontei, 175 

 Passerina amoena, 135 

 Pedioecetes phasianellus campestris. 59 



phasianellus columbianus, 58 

 Pelecanus erythrorhynchos, 31 

 Pelican, White, 31 



Penthestes atricapillus atricapillus, 160 



atricapillus septentrionalis, 161 



gambeli gambeli, 161 



hudsonicus hudsonicus, 162 



rufescens rufescens. 162 

 Perdix perdix, 172 

 Perisoreus canadensis capitalis, 95 

 Petrochelidon lunifrons lunifrons, 137 

 Pewee, Western Wood, 86 

 Phalacrocorax auritus auritus, 31 

 Phalaenoptilus nuttalli nuttalli, 79 

 Phalarope, Northern, 45 



Wilson, 45 

 Phasianus, 172 

 Pheasant, Chinese, 172 

 Philohela minor, 46 

 Phloeotomus pileatus abieticola, 76 

 Phoebe, Say, 85 

 Pica pica hudsonia, 94 

 Picoides americanus dorsalis, 74 



americanus fasciatus, 74 



arcticus, 74 

 Pigeon, Passenger, 171 

 Pinicola enucleator alascensis, 107 



enucleator montana, 106 

 Pintail, 35 



Pipilo maculatus arcticus, 133 

 Pipit, 153 



Sprague, 153 

 Piranga ludoviciana, 136 

 Pisobla bairdi, 48 



fuscicollis, 48 



maculata, 48 



minutilla, 48 

 Planesticus migratorius propinquus, 167 

 Plectrophenax nivalis nivalis, 113 

 Plover, Black-bellied, 53 



Golden, 54 



Mountain, 55 



Upland, 51 

 Podasocys montanus, 55 

 Podilymbus podiceps, 28 

 Pooecetes graniineus confinis. 117 

 Poor-will, 79 

 Porzana Carolina, 44 

 Prairie Chicken, 58 

 Progne subis subis, 137 

 Ptarmigan, White-tailed. 58 



Willow, 58 



Querquedula cyanoptera, 35 



discors, 34 

 Quiscalus quiscula aeneus, 105 



