1017 BIRDS OF THE SOUTHERN CALIFORNIA ISLANDS 109 



seems to he in a good line of migration. Santa Catalina is much more diversi- 

 fied than the last, in fact it is next to Santa Cruz in this respect, and if much 

 systematic work were done iipon it, I helieve that it would surpass San Clemente 

 in the number of species in its avifauna. It is the most often visited of the isl- 

 ands, and many ornithologists of note have collected there, but usually their vis- 

 its have been limited to several days. The Coronados fall fourth in this list, 

 rather surprising for such small barren spots, but then they ari^ many times more 

 often visited than any other of the smaller islands. It is to be expected that not 

 so many forms occur on San Nicolas, as it is rather barren and well out to sea. 

 Tlie avifauna of Santa Barbara Island is of rpiite respectable size. It has a good 

 list of water birds, and although there has not been a great deal of work done 

 tlun-e for any period of time, it seems to be a favorite resting place for the few 

 snuill land migrants that pass that way. There has been less systematic work 

 done on Anacapa, but it is much more often visited for periods of several days 

 at a time. The number of species recorded from both San ^liguel and Santa 

 Rosa are very small for the size of the islands, but neither is especially attractive 

 to bird life. Then, too, there has not been much work done on San IMiguel and 

 less on Santa Rosa, where it is difficult to get a permit to stay on the island. 



Tabulation of Species by Manner of Occurrence 



In preparing a table of seasonal occurrence of the different birds, I have 

 l)een obliged to use my own judgment to a certain extent. That is, when there 

 are but a couple of records for a species during the winter, it is hard to tell for 

 a surety whether it occurs regularly during that time of year, or should be 

 classed as a casual visitant. In such case I have had to consider the conditions 

 under which the record was made, the abundance of the species upon the mainland 

 during the same season, and several other factors. It will therefore be seen that 

 the tables are only approximately correct, but as nearly so as it is possible for me 

 to make them under the circumstances. 



RESIDENTS 



1. Lunda cirrhata 19. Accipiter cooperi 



2. Ptychoramphus aleuticus 20. Buteo borealis calurus 



3. Brachyramphus hypoleucus 21. Haliaeetus leucocephalus leucocepha- 



4. Cepphus columba lus 



5. Uria troille californica 22. Faico peregrinus anatum 



6. Larus occidentalis 23. FaIco sparverius phalaena 



7. Oceanodroma melania 24. Pandion haliaetus carolinensis 



8. Oceanodroma homochroa 25. Aluco pratincola 



9. Oceanodroma socorroensis 26. Asio wilsonianus 



10. Phalacrocorax auritus albociliatus 27. Speotyto cunicularia hypogaea 



11. Phalacrocorax penicillatus 28. Colaptes cafer collaris 



12. Phalacrocorax pelagicus resplendens 29. Calypte anna 



13. Pelecanus californicus 30. Selasphorus alleni 



14. Ardea herodias herodias 31. Sayornis nigricans 



15. Aegialitis nivosa 32. Otocoris alpestris insularis 



16. Haematopus bachmani 33. Aphelocoma insularis 



17. Lophortyx californica vallicola 34. Corvus corax sinuatus 

 IS. Zenaidura macroura marginalia 35. Sturnella neglecta 



