1756 U.S. NATIONAL MUSEUM BULLETIN 237 part 3 



Nichols, John Treadwell — Continued 



1957. A medium-dull white-throated sparrow in its seventh winter. Bird- 

 Banding, vol. 28, p. 160. 

 Nichols, L. Nelson 



1936. In Pearson, T. Gilbert, Birds of America, pt. 2. 

 Nicholson, Donald J. 



1928. Nesting habits of the seaside sparrows in Florida. Wilson Bull., 

 vol. 40, pp. 225-237. 



1938. An historical trip to Cape Sable. Florida Nat., vol. 11, pp. 41-44. 



1946. Smyrna seaside sparrow. Florida Nat., vol. 19, pp. 39-42. 



1950. Disappearance of Smyrna seaside sparrow from its former haunts. 



Florida Nat., vol. 23, p. 104. 

 Nicholson, E. M. 



1930. Field-notes on Greenland birds, pt. 2. Ibis, ser. 12, vol. 6, pp. 395- 



428. 

 Nicholson, Wray H. 



1936. Notes on the habits of the Florida grasshopper sparrow. Auk, vol. 



53, pp. 318-319. 

 Nickell, Walter Prine 



1951. Studies of habitats, territory and nests of the eastern goldfinch. 



Auk, vol. 68, pp. 447-470. 

 Niedrach, Robert James, and Rockwell, Robert Blanchard 



1939. The birds of Denver and mountain parks. Colorado Mus. Pop. Ser. 



No. 5. 



NlETHAMMER, GtJNTHER 



1937. Handbuch der deutschen Vogelkunde, vol. 1, Passeres. 



NlGHSWONGER, PAUL 



1959. Eleven years of banding. Scissortail, vol. 9, p. 43. 

 Nolan, Val, Jr. 



195S. Singing by female indigo bunting and rufous-sided towhee. Wilson 



Bull., vol. 70, pp. 287-288. 

 1961. A method of netting birds at open nests in trees. Auk, vol. 78, pp. 

 643-645. 

 Norris, J. Parker 



1887. Discovery of the eggs of the evening grosbeak. Ornith. and Ool., 

 vol. 12, p. 144. 

 Norris, Robert A. 



1951. Distribution and populations of summer birds in southwestern 

 Georgia. Occas. Publ. Georgia Ornith. Soc. No. 2. 



1953. Chipping sparrows at Tifton: a note on weights and foot-pox in early 



spring. Oriole, vol. 18, p. 46. 



1954. New information on the white-crowned sparrow in southern Georgia. 



Oriole, vol. 19, pp. 25-31. 



1960. Density, racial composition, sociality and selective predation in 



nonbreeding populations of Savannah sparrows. Bird-Banding, 

 vol. 31, No. 4, pp. 173-216. 

 1963. Birds of the AEC Savannah River plant area. Charleston Museum. 

 Norris, Robert A., and IIigiit, Gordon L., Jr. 



1957. Subspecific variation in winter populations of Savannah sparrows: 

 A study in field taxonomy. Condor, vol. 59, pp. 40-52. 

 Norris, Russell T. 



1947. The cowbirds of Preston Frith. Wilson Bull., vol. 59, pp. 83-103. 



