which later proved to have been the young of Uria cal- 

 ifornica y and Stercorarius parasiticus from the coast of 

 California.) 



1875. Notes on California Thrushes. Am.Natura- 

 list IX, February 1875, pp. 114-116. (Corrections in re- 

 gard to the "Ornithology of California:" Turdus 

 ustulatus and " T. nanus") 



1875. New Facts relating to Californian Ornithol- 

 ogy No. i. Proc. Cal. Ac. Sc. VI, December 1875, 

 pp. 189-202. (Extended critical and biographical notes 

 on a number of the less known species. 



1876. Early nesting of the Anna Hummingbird. 

 Am. Naturalist X, January 1876, pp. 48-50. (In the 

 vicinity of Haywards). 



1876. Californian Garden Birds. Am. Natural- 

 ist X, February 1876, pp. 90-96. (Running account of 

 about forty species nesting in the neighborhood of Hay- 

 wards. Incidentally Cooper names and characterizes 

 on page 91 a western race of the Tree Swallow, "Hi- 

 rundo bicolor var. vespertina" It is interesting to note 

 that this was the only "variety" or subspecies Cooper 

 ever named, for as shown by most of his writings he 

 did not lean strongly toward trinomialism. In spite 

 of the fact that vespertina was ignored by Cooper's 

 contemporaries, and has until now remained almost com- 

 pletely buried, there seems to be a distinguishable 



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