LOCAL AVIFAUNA OF TIIF CHEAT P.ASIN. 



327 



the narrow ledges or in niches on the face of cUflfs, but their nesting-habits 

 are too variable. The same objection might be urged in regard to Tachy- 

 cin^ta thalassina, since in some localities this species nests in hollow trees, 

 but along our route we found it to be everywhere strictly saxicoline. 



12. Aquatic birds. — This group includes the vast multitude of water- 

 fowl, both waders and swimmers; these iuliabit cliielly the valleys, the 

 following being the species which breed in the interior: — 



1. iEjjialitis vociferus. 



2. Jijj^alitis uivosus. 



3. Stefiuiiopus wilsoiii. 



4. Ki'curvirostra americaiia. 



5. Hiiiiautopus inexicaiins. 



6. Nuinenius longirostris. 



7. TriiiKoides macularius. 



8. Kli.yacopliilus solitarius. 



9. Triiiga bairdi. 



10. Tringa iniiiutilla. 



11. Ereunetes pusilliis. 



12. Falciiiellus guarauua. 



13. Falciuellus tbalassiivus. 



14. Ardea herodias. 



15. Uerodias egretta. 

 10. Nyctiardea ntevia. 



17. Botaurus minor. 



18. Ardetta exilis. 



19. Kallus virgiuiaims. 



20. Porzana Carolina. 



21. Porzana jamaicensis. t 



22. Branta canadensis. 



23. Anas bosclias. 



24. Chank'la.srnus streperus. 



25. Ualila acuta. 



20. Spatula cl.vpeata. 



27. Qucniucdula discor.s. 



28. Querriuednla cyanoptera. 

 20. Ncttion carolinensis. 



30. Mareca atjiericana. 



31. Aix sponsa. 



32. Erismatura rnbida. 



33. Larus calit'oruicus. 



34. Sterna regia. 



35. Sterna fosteri. 



30. Hydrochelidon larifonuis. 



37. Pelecanus erythrorbynchus. 



38. Graculus floridanns. 



39. Podiceps occidentals. 



40. Podiceps cristatus. 



41. Podiceps californicus. 



In the preceding lists of the sjjecies characterizing special faunal sub- 

 districts of the Great Basin, we have included mainly those which are 

 common to the entire breadth of the Province. Other species, which might 

 properly be assigned to these lists with respect to their habitats, are 

 e.\cluded, from the fact that they belong to oidy one side or the other of the 

 Basin. The western series was lost almost immediately after our departure 

 from the Sierra Nevada, very few being found even so far to the eastward of 

 that range as the West Humboldt Mountains. The eastern series, however, 

 presented itself uuich more gradually, additional species being met with in 

 each successive high range to the eastward, the first of them appearing on 



