154 



REPORT OF NATIONAL MUSEUM, 1918. 



Chapman, Frank M. — Continued. 



The number of species and sub- 

 species treated is 1,285, of 

 which 11 are described as new. 

 An extended account of the 

 physical features of the region, 

 climate, life zones, and distribu- 

 tion of bird life are given, with 

 a sketch of the development of 

 ornithological research in Colom- 

 bia. 



Cory, Charles B. Catalogue of birds 

 of the Americas. Part 2, No. 1. 



Field Mus. Nat. Hist., 

 Pub. 197, Zool. Ser., 

 13, Mar., 1918, pp. 

 1-315, pi. 1, figs. 

 1-3. 

 Catalogue of the owls, par- 

 rots, kingfishers, and related 

 birds of America, forming the 

 second part of a work of which 

 the first has not yet appeared. 

 Several forms are described as 

 new to science. 

 Dwight, Jonathan. The geographical 

 distribution of color and of other 

 variable characters in the genus 

 Junco : a new aspect of specific and 

 subspecific values. 



Bull. Amer. Mus. Nat. 

 Hist., .38, Art. 9, 

 June 1, 1918, pp. 

 269-309, pis. 11-13, 

 maps 1-5. 

 Study of variations in this 

 genus from an unusual point of 

 view, in which the subject is 

 treated synthetically rather 

 than analytically. A new sub- 

 species is described from British 

 Columbia. 



Grinnell, Joseph. The subspecies of 

 the mountain chickadee. 



Univ. California Pub. 

 Zool., 17, No. 17, 

 May 4, 1918, pp. 

 505-515, figs. 1-3. 

 Recognizes 4 subspecies, of 

 which 2 are here described as 

 new. 

 Herset, F. Seymour. The status of 

 the black-throated loon (Gavia arc- 

 tica) as a North American bird. 



Auk, 34, No. 3, July, 

 1917, pp. 283-290. 

 All North American notices 

 of this species are found to re- 

 fer to the Pacific loon (Gavia 

 pacifica), with the exception of 

 three from Alaska. The latter 



Hersey, F. Seymour — Continued. 



are identified with an east Si- 

 berian form, and not with the 

 European species. 



Holltster, N. The black vulture in the 

 District of Columbia and Maryland. 

 Proc. Biol. Soc. Wash- 

 ington, 30, July 27, 



1917, p. 123. 

 Records an individual from 



Washington, D. C, and another 

 from Perryman, Md. 



The yellow rail in the District 



of Columbia. 



Proc. Biol. Soc. Wash- 

 ington, 31, June 29, 



1918, p. 93. 

 Records a fourth specimen of 



Coturnicops noveboracensis from 

 Washington, D. C. 



Howell, Alfred Brazier. Birds of the 

 islands off the coast of southern 

 California. 



Pacific Coast Avifauna, 

 No. 12, June SO, 



1917, pp. 1-127, 1 

 map. 



An account of the birds of 

 the Santa Barbara and Los 

 Coronados groups of islands, 

 from which 195 forms are enu- 

 merated ; 13 additional species 

 are included in a hypothetical 

 list. 



Loomis, Leverett Mills. Expedition 

 of the California Academy of Sci- 

 ences to the Galapagos Islands, 1905- 

 1906. XII. A review of the alba- 

 trosses, petrels, and diving petrels. 



Proc. California Acad. 

 Sci., ser. 4, 2, pt. 2. 

 No. 12, Apr. 22, 



1918, pp. 1-187, pis. 

 1-17. 



Account of the species ob- 

 tained by the expedition, with 

 a discussion of the remaining 

 members of the group, including 

 chapters on their distribution, 

 migration, variation, etc., pref- 

 aced by a historic sketch. 



McGregor, R. C. New or noteworthy 

 Philippine birds. IT. 



Philippine Journ. Sci., 

 13, No. 1, Sec. D, 

 Jan., 1918, pp. 1- 

 19, pis. 1-3, figs. 

 1-10. 

 Notes on 23 species of rare 

 Philippine birds. Neoleucotreroti 



