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PROCEEDINGS 
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CALIFORNIA ACADEMY OF SCIENCES 
FourTH SERIES 
Vo. II, Pr. II, No. 13, pp. 189-258 June 16, 1919 
EXPEDITION OF THE CALIFORNIA ACADEMY OF 
SCIENCES TO THE GALAPAGOS 
ISLANDS, 1905-1906 
XIII 
FIELD NOTES ON THE LAND BIRDS OF THE GALAPAGOS 
ISLANDS AND OF COCOS ISLAND, COSTA RICA 
BY 
EDWARD WINSLOW GIFFORD 
Associate Curator of the Anthropological Museum, 
University of California 
The present paper is a continuation of “The Birds of the 
Galapagos Islands, with Observations on the Birds of Clipper- 
ton and Cocos Islands (Columbiformes to Pelecaniformes).”' 
The collection of land bird skins brought back by the Expe- 
dition numbers 5,916, exclusive of the Galapagos Dove. The 
writer lacks the time to study this large number of specimens 
and therefore deems it advisable to publish his field notes 
without further delay. In addition to the skins, considerable 
collections of eggs, nests, and birds and stomachs in alcohol 
were made. These also await investigation. 
1 Proc. Calif. Acad. Sci., 4th ser., v. 2, pt. 1, pp. 1-132, pls. 1-7. 
June 16, 1919 
