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248 THE CONDOR ? Vol. XXI -. N Nettion carolinense, 198 Nichols, John T., association of migrating waders, 235 Nighthawk, 83 Pacific, 40, 67, 74, 153 Western, 204 Nucifraga columbiana, 205 Numenius americanus americanus, 41, 237 americanus occidentalis, 41, 202, 237 Nutcracker, Clarke, 125, 205 Nuthatch, Inyo Slender-billed, 42 Red-bellied, 227 Red-breasted, 85, 206 Nuttallornis borealis, 83 Nycticorax nycticorax naevius, 200 O Oberholser, Harry C., an albino Black-chin- ned Hummingbird, 122; description of an interesting new junco from Lower California, 119-120; Bubo irginianus subarcticus in North Dakota, 125; Aechmophorus occidentalis in Lower California in summer, 128; descrip- tion of a new subspecies of P. ipllo fus- cus, 210-211 Oceanodroma furcata, 61, 87 leucorhoa, 45, 61 leucorhoa kaedingi, 41 macrodactyla, 61 melania, 87 socorroensis, 87, 239 tristrami, 60 Olor columbianus, 126 Oporornis tolmiei, 85 Oreortyx picta plumifera, 202 Oreoscoptes montanus, 76, 206 Oreospiza chlorura, 76, 206 Oriole, Baltimore, 3 Bullock, 64, 205 Hooded, 77, 79 Osprey, 204 Otocoris alpestris leucolaema, 223 alpestris merrilli, 204 Otus asio, 82 asio macfarlanei, 173 Ouzel, Water, 132 Owl, Barn, 74 Burrowing, 204 Grea_t Horned, 82 Long-eared, 127, 227, 228 MacFarlane Screech, 173 Pygmy, 58 Rocky Mountain Pigmy, 41 Screech, 56, 72, 82 Short-eared, 21, 22, 23, 24, 204 Spotted, 57 Western Horned, 204 Oxyechus vociferus, 202 Pandion haliaetus carolinensis, 204 Parasitism of nestling birds by fly larvae, 30 Parrot, Sea, 128 Partridge, Valley, 29 Passer domesticus, 75, 214 Passerculus rostratus guttatds, 41 sandwichensis nevadensis, 75, 205 sandwichensis savanna, 41 Passerella iliaca brevicauda, 42 iliaca mariposae, 76 iliaca monoensis, 41 iliaca schistacea, 206 Passerina amoena, 30, 68, 206 ciris, 236 Pelecanus, erythrorhynchos, 197 Pelican, White, 197, 228 Pelidna alpina sakhaHna, 202 Pemberton, J. R., notice concerning, 44 Penthestes atricaplllus, 85 gambeli inyoensis, 42 Perisoreus canadensis, 83 obscurus griseus, 204 Petrel, Forked-tailed, 87 Kaeding, 41' Socorro, 239 Sooty, 61 White-breasted, 60, 61 Petrochelidon lu.nifrons, 172 lunifrons lunifrons, 68, 206 Pewee, Western Wood, 67, 83 Phaethon aethereus, 88 Phainopepla, 71, 172 Phainopepla nitens, 172 Phalacrocorax auritus albociliatus, 197 auritus auritus, 197 pelagicus resplendens, 172 Phalarope, Northern, 39, 74 Wilson, 39, 63, 64, 201 Phasianus torquatus, 202, 214 Pheasant, Ring-necked, 202, 214 Phloeotomus pileatus, 83 pileatus abieticola, 153 Phoebe, Black, 29 Say,?63, 65, 74, 75, 204 Phonipara zena, 170 Pica nuttalli, 74 pic.a hudsonia, 75, 204 Picoides americanus, 83 arcticus, 83 Pierce, Wright M., another California re%ord of the Bendire Thrasher, 123; Arctic Tern from Laguna Beach, California, 125; miscellaneous stomach examina- tions, 127 Pigeon, Band-tailed, 40 Homing, 96 Wood, 94 Pintail, 24, 111, 122, 128, 198, 226, 227, 229 Pipilo crissalis, 211 crissalis senicula, 68, 213 fuscus, 211 fuscus albigulus, 210, 211 fuseus aripolius, 210, 211 fuscus mesoleucus, 211' fuscus senicula, 210, 211 maculatus curtatus, 206 maculatus megalonyx, 68 maculatus montanus, 42 Pipit, 206