acknowleilsemenis 



I am indebted to a number of individuals who have assisted me during 

 the preparation of this book. 



Chief Park NaturaMst Al Mebane, and Assistant Chief Park Naturalist 

 John Tyers of Yellowstone took a very active interest in the book, and were 

 most helpful in providing resources for the book. 



Chief Park Naturalist Charles McCurdy of Grand Teton provided me 

 with information on Grand Teton National Park and its birds. He also 

 provided me with an invaluable list of resource persons. 



Former Yellowstone Chief Park Naturalist Bill Dunmire, former 

 Grand Teton Chief Park Naturalist Willard E. Dilley, former Yellowstone 

 Assistant Chief Naturalist Stan Canter, former North District Naturalist 

 Supervisor George Morrison, former Yellowstone Sub-district Naturalist 

 Supervisor George Downing, and current North District Supervising Natural- 

 ist John Whitman were all kind enough to evaluate the manuscript and 

 share their observations of birds in the two parks. 



Botanist Don Despain, of the Yellowstone Biologists Office, provided 

 invaluable assistance in writing habitat complex descriptions, and biolo- 

 gists Glenn Cole and Doug Houston, of the same office, read and evalu- 

 ated the manuscript. 



1 am deeply indebted to Seasonal Naturalists Paul Schullery and Steve 

 Gniadek of Yellowstone, and Cheryl McGinley of Grand Teton for their 

 help in gathering information, providing records on bird observations, and 

 evaluating the manuscript. 



Illustrator Bill Chapman was most helpful in developing the book's 

 format and design features, and the following people read and evaluated 

 the manuscript or provided suggestions, ideas, or encouragement: 



Don Arceneaux, Butch Bach, Cordon Bolander, Joanna Booser, 

 Ha Bucknall, Douglas C Campbell, Geri Hape, Chris Judson, 

 Reed Kelly, Hugh Kingery, Charles Milliken, John and Judy 

 O'Neale, Bert Raynes, Ed Riddell, Susan Sindt, and Robert 

 Wood. 



Finally, I wish to express my appreciation to my wife, Peggy, and my 

 daughter, Jackie, for patiently reading or listening to, and passing judg- 

 ment on hundreds of passages from the book, and for untold hours of typ- 

 ing and proofreading. 



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