no 



PACIFIC COAST AVIFAUNA 



No. 12 



36. Carpodacus mexicanus dementis 47. 



37. Loxia curvirostra Strickland! 48. 



38. Astragalinus psaltria hesperophilus 49. 



39. Astragalinus lawrencei 50. 



40. Spizella passerina arizonae 51. 



41. Amphispiza belli 52. 



42. Aimophila ruficeps ruficeps 53. 



43. Melospiza melodia graminea 54. 



44. Melospiza melodia clementae 55. 



45. Pipilo maculatus clementae 56. 



46. Pipilo maculatus megalonyx 



Lanius ludovicianus anthonyi 

 Vireo huttoni huttoni 

 Vermivora celata sordida 

 Mimus polyglottos leucopterus 

 Salpinctes obsoletus obsoletus 

 Salpinctes obsoletus pulverius 

 Thryomanes bewicki charienturus 

 Thryomanes leucophrys 

 Sitta canadensis 

 Psaltriparus minimus minimus 



The above is a list of species that are supposed to be foimd on the islands 

 thronghout the year, and to breed there. Vermivora c. sordida, however, is only 

 partly resident, as a great many individuals migrate to the adjacent mainland for 

 the winter. 0. socorrocnsis is probably resident, but this is not absolutely cer- 

 tain. In addition to the above, there is the following list of birds which, although 

 breeding, some to the north, and some to the south of the region treated, and 

 common only when not engaged in the rearing of young in other localities, may 

 nevertheless be encountered upon the islands during all parts of the year. 



1. Larus heermanni 



2. Sterna maxima 



3. Diomedea nigripes 



4. Diomedea albatrus 



5. Puffinus griseus 



6. Heteractitis incanus 



7. Actitis macularia 



8. Arenaria melanocephala 



WINTER VISITANTS 



Anser albifrons gambeli 



Calidris leucophaea 



Oxyechus vociferus 



Podasocys montanus 



Accipiter velox 



Falco columbarius columbarius 



Ceryle alcyon 



Sphyrapicus ruber ruber 



Sayornis sayus 



Passerculus sandwichensis alaudinus 



Zonotrichia leucophrys gambeli ■ 



Zonotrichia coronata 



Junco hyemalis thurberi 



Passerella iliaca unalaschcensis 



Passerella iliaca megarhyncha 



Passerella iliaca Stephens! 



Passerella iliaca insularis 



Bombycilla cedrorum 



Dendroica coronata 



Dendroica auduboni auduboni 



Anthus rubescens 



Regulus calendula calendula 



Hylocichla guttata guttata 



Planesticus migratorius propinquus 



Ixoreus naevius meruloides 



