HOST RELATIONS OF PARASITIC COWBIRDS 241 



Nolan, Val, Jr. 



1958a Middlewestern prairie region. Audubon Field Notes, vol. 12, pp. 



415-417. 

 1958b. Anticipatory food-bringing in the prairie warbler. Auk, vol. 75, 

 pp. 263-278. 

 NoRRis, John Parker 



1892a. A series of eggs of the Kentucky Warbler. Ornithologist and Oologist, 



vol. 17, pp. 1-3. 

 1892b. A series of eggs of the scarlet tanager. Ornithologist and Oologist, 

 vol. 17, pp. 21-22. 

 NoRRis, Russell T. 



1944. Notes on a cowbird parasitizing a song sparrow. Wilson Bull., vol. 



56, pp. 129-132. 

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

 NuTTALL, Thomas 



1840. A manual of the ornithology of the United States and of Canada: 

 The land birds. 2nd ed., pp. 832. 

 Nyc, F. F., Jr. 



1939. Nesting observations outside of Washington County, Texas-Brenham 



Oologist, vol. 56, pp. 86-88. 



1940. Texas. Oologist, vol. 57, pp. 113-115. 

 Ogilvie-Grant, W. R. 



1912. Catalogue of birds' eggs in the British Museum. Vol. 5, pp. 532, 

 pis. 22. 

 Oldright, Charles Durand ("Elanoides") 



1890a. A list ofthe birds of McLennan Co., Texas. Ornithologist and Oologist, 



vol. 15, pp. 57-59. 

 1890b. The thrushes. Ornithologist and Oologist Semi- Annual, vol. 2, 

 no. 2, pp. 32-35. 

 Olsen, James H. 



1960. Nests and young-out-of-the-nest reported by campers of the 1959 

 foray at Mountain Lake, Virginia. Redstart, vol. 27, pp. 35-42. 

 Olsen, R. E. 



1932. Notes on the occurrence of six of the less common species of the 

 family Fringillidae, class Aves, in southern Michigan. Papers 

 Michigan Acad. Sci., Arts and Letters, vol. 15, pp. 479-483. 

 Olson, Ada L. 



1943. Cowbird carrying away and eating a bird's egg in the evening. 

 Wilson Bull., vol. 55, p. 195. 

 Ord, George 



1836. Observations on the cow bunting of the United States of America. 

 Mag. Nat. Hist., vol. 9, pp. 57-71. 

 Overmire, Thomas G. 



1962. Nesting of the dickcissel in Oklahoma. Auk, vol. 79, pp. 115-116. 

 Owen, Robert 



1861. On the nesting of some Guatemalan birds. Ibis, vol. 3, pp. 58-69. 

 Packard, Fred M. 



1936. A black-capped chickadee victimized by the eastern cowbird. Bird 

 Banding, vol. 7, pp. 129-130. 



