151 



BOOKS AND ARTICLES FOR ADDITIONAL INFORMATION ON AQUATIC BIRDS 



American Ornithologists' Union. 1957. Check-list of North American 

 Birds, 5th Ed. A.O.U., Baltimore. 



Bedard, J. 1969. Adaptive radiation in Alcidae. Ibis 111:189-198. 



Bellrose, F.C. 1976. Ducks, Geese and Swans of North America. 2nd Ed. 

 Wildl. Manage. Inst., Stackpole Books, Harrisburg. 544 pp. 



Binford, L.C., and J.V. Remsen. 1974. Identification of the Yellow- 

 billed Loon. Western Birds 5:111-126. 



Carney, S.M. 1964. Preliminary Keys to Waterfowl Age and Sex Identifi- 

 cation by Means of Wing Plumage. Dept. Interior, Special Scientific 

 Rept. - Wildl. 82. 



Cogswell, H.L. 1977. Water Birds of California. Calif. Nat. Hist. 

 Guides, No. 40. Univ. California Press, Berkeley. 



Coues, E. 1903. Key to North American Birds. 5th Ed. Estes and Lauriat, 

 Boston. 1151 pp. 



Devi Hers, P. 1972. The Juvenal plumage of Kittlitz's Murrelet. Calif. 

 Birds 3:33-38. 



Devi Hers, P. 1977. The skuas of the North American Pacific coast. 

 Auk 94:417-429. 



Dwight, J. 1925. The gulls (Laridae) of the world; their plumages, 



moults, variations, relationships and distribution. Amer. Mus. Nat. 

 Hist., Bull. 52 (3):63-401. 



Flahaut, M.R. 1946. Identification of Red-billed Tropicbird taken in 

 Washington state. Murrelet 28:22. 



Godfrey, W.E. 1966. The Birds of Canada. Natl. Mus. Canada, Bull. 203. 

 428 pp. 



Harper, P.C., and F.C. Kinsky. 1978. Southern Albatrosses and Petrels: 

 An Identification Guide. Victoria Univ. Press, Wellington. 116 pp. 



Hoffman, W., J.A. Wiens, and J.M. Scott. 1978. Hybridization between 

 gulls (Larus glaucescens and L. ojeidentalis ) in the Pacific 

 northwest. Auk 95:441-458. 



Jehl, J.R., Jr., and S.I. Bond. 1976. Morphological variation and 

 species limits in murrelets of the genus Endomyohura. San Diego 

 Soc. Nat. Hist., Trans. 18(2):9-24. 



