80 



PROCEEDINGS OF THE CALIFORNIA 



Catalina is a rugged, metamorpbic, and volcanic ridge, with something of a 

 valley in the middle containing a marsh and running brook, which I was not, 

 however, able to visit. Most of it is covered with herbage, and much shrubbery 

 in parts; the shores are steep and rocky, and there is an almost land-locked har- 

 bor on the S.W. side. 



San Clemente and Santa Barbara islands are exclusively basaltic, with sev- 

 eral terraces. The vegetation is almost wholly herbaceous, and rather abun- 

 dant. The shores are steep and rocky. Water is scarce on the former and 

 there is absolutely none on the latter for two-thirds of the year, except what is 

 deposited by the fogs. 



San Nicolas Island is very different from the rest, being exclusively sand- 

 stone, of very recent elevation, and covered with light herbage. The shores 

 are chiefly sandy and the surrounding water shoal. 



The islands having been visited for only a short time, few of the migratory 

 species were observed, except on Catalina Island in the last days of October. 

 Santa Barbara Island was visited for six weeks in May and June ; Catalina 

 again in June and July ; the others for a few days only about the first of July. 

 The results can therefore be considered only an approximation to a comparisod 

 of the faunas. 



Summer and Winter Migrations. 



As before stated, the majority of the birds of California are constant resi- 

 dents in some part of the State, but each locality has some which come there 

 only .at certain seasons. The collections have not, however, been made at any 

 one point in the two extremes of the year, but a list can be given of those 

 observed at San Pedro and thence to San Diego from June 1st to August 1st, 

 compared with those seen from October to April 1st, omitting the constant 

 residents. 



SUMMER. 



1. Selasphorus riffus Gmel. 



2. Panyptila melanoleuca Baird. 



3. Chordeiles Texensis Lawr. 



4. Tyrannus verticalis Say. 



5. Myiarchus Mexicanus Kaup. 



6. Contopus Richardsonii Swains. 



7. Empidonax flaviventris Baird. 



8. Geothlypis trichas Linn. 



9. " MacGillivrayi And. 



10. Icteria longicauda Lawr. 



11. Dendrffica oestiva Gmel. 



12. Myiodioctes pusillus Wils. 



13. Pyranga ludoviciana Wih. 



14. Hirundo horreorum ^art. 



15. " lunifrons Say. 



16. Progne purpurea Luin. 



17. Vireo gilvus Vieill. 



WINTER. ) 



1. Falco polyagrus Cass. 



2. Accipiter Cooperii Bonap. 



3. Accipiter fuscus Gmel. 



4. Archibuteo ferrugiueus Lickt. 



5. " lagopus Gray. 



6. Sayornis Sayus Bonap. 



7. Turdus migratorius Linn. 



8. Sialia arctica Swains. 



9. Regulus calendula Linn. 



10. Anthus Ludovicianus Gmel. 



11. Dendrceca Audubouii Towns. 

 '12. Ampelis cedrorum, Vieill. 



13. Sitta aculeata Cass. 



14. Parus montanus Gamb. 



15. Passerculus alaudinus? Bonap. 



16. Zonotrichia Gambelli Nutt. 



1 7. " coronata Pall. 



