NORTH AMERICAN FAUNA 



This publication series includes monographs and other reports of scientific investi- 

 gations relating to birds, mammals, reptiles, and amphibians, for professional 

 readers. It is a continuation by the Fish and WildHfe Service of the series begun in 

 1889 by the Division of Ornithology and Mammalogy (Department of Agriculture) 

 and continued by succeeding bureaus— Biological Survey and the Bureau of Sport 

 Fisheries and Wildlife. The Service distributes these reports to official agencies, to 

 libraries, and to researchers in fields related to the Service's work; additional copies 

 may usually be purchased from the Division of Public Documents, U.S. Government 

 Printing Office. 



Reports in NORTH AMERICAN FAUNA since 1950 are as follows (all sale stock is 

 exhausted): 



60. Raccoons of North and Middle America, by Edward A. Goldman. 1950. 153 pp. 



61. Fauna of the Aleutian Islands and Alaska Peninsula, by Olaus J. Murie; In- 



vertebrates and Fishes Collected in the Aleutians, 1936-38, by Victor B. 

 Scheffer. 1959. 406 pp. 



62. Birds of Maryland and the District of Columbia, by Robert E. Stewart and 



Chandler S. Robbins. 1958. 401 pp. 



63. The Trumpeter Swan; Its history, habits, and population in the United States, 



by Winston E. Banko. 1960. 214 pp. 



64. Pelage and Surface Topography of the Northern Fur Seal, by Victor B. Scheffer. 



1961. 206 pp. 



65. Seven New White-winged Doves from Mexico, Central America, and South- 



western United States, by George B. Saunders. 1968. 30 pp. 



66. Mammals of Maryland, by John L. Paradiso. 1969. 193 pp. 



67. Natural History of the King Rail, by Brooke Meanley. 1969. 108 pp. 



68. The Sea Otter in the Eastern Pacific Ocean, by Karl W. Kenyon. 1970. 352 pp. 



69. Natural History of the Swainson's Warbler. 1971. 90 pp. 



70. The Distribution and Occurrence of the Birds of Jackson County, Oregon, and 



Surrounding Areas, by M. Ralph Browning. 1975. 69 pp. 



71. The Screech Owl: Its Life History and Population Ecology in Northern Ohio, 



by L. F. VanCamp and C. J. Henny. 1975. 65 pp. 



72. The California Condor, 1966-76: A Look at its Past and Future, by S. F. Wilbur. 



1978. 136 pp. 



Library of Congress Cataloging in Publication Data 



Faanes, Craig A. 

 Birds of the St. Croix River Valley, Minnesota and Wisconsin. 



(North American fauna ; no. 73) 



Includes bibliographical references and index. 



Supt. of Docs, no.: I 49.30:73 



1. Birds— Saint Croix Valley (W^is. and Minn.). L Title. II. Series. 

 QL155.A4 no. 73 [QL683.S23] 596.097s 81-607022 



[598.297751] AACR2 



NOTE: Use of trade names does not imply U.S. Government endorsement of com- 

 mercial products. 



