172 



47. Chaulelasmus streperus. Abundant. 



48. Querqueclula cyanoptera. Abundant. 



49. Aythya sp? Abundant. 



50. Larus sp ? Abundant. 



61. Sterna Forsteri? Abundant. 



52. Hydrochelidon fissipes. Very abundant. 



I. List of species observed among the oaks of the plains 



between Sacramento City and the foot-hills of the 



Sierra Nevada, June and July, 1867. 



1. Parus atricapillus occidentals ? Common. 



2. Troglodytes ae'don Parkmauni. Common. 



3. Eremophila alpestris chrysolsema. Abundant. 



4. Pica melanoleuca Nuttalli. Very abundant. 



5. Corvus Americanus. Very abundant. 



6. Myiarchus crinitus cinerascens. Common. 



7. Picus Nuttalli. Common. 



8. Melanerpes formicivorus. Abundant. 



9. M. torquatus. Abundant. 



10. Strix flammea pratincola. Common. 



11. Scops asio. Common. 



12. Buteo lineatus elegans. Common. 



13. Rhinogryphus aura. Rare. 



II. SIERRA NEVADA. 



a. Species seen among the western foot-hills, July, 1867. 



1. Polioptila cserulea? Abundant. 



2. Psaltriparus minimus. Abundant. 



3. Certhia familiaris fusca. Common. 



4. Troglodytes ae'don Parkmanni. Common. 



5. Dendroica aestiva. Abundant. 



6. Chrysomitris Lawrencii. Common. 



7. Pipilo fusca crissalis. Common. 



8. Cyanocitta Floridana Californica. Common. 



9. Lophortyx Californicus. Common. 



b. Species found in the pine forests of the western slope of the 

 Sierra Nevada, at an altitude of 5,000 feet, in July, 1867. 



1. Turdus migratorius. Common. 



2. T. Swainsoni ustulatus. Abundant. 



3. Sialia Mexicana. Common. 



