C-35 



ACKNOWLEDGEMENTS 



Special appreciation is extended to the Office of Endangered 

 Species of the United States Department of the Interior's Bureau of 

 Sport Fisheries and Wildlife for its cooperation and willingness to 

 share information contained in the files and "Redbook" of threatened 

 fish and wildlife. In addition, gratitude is expressed to the many 

 Government biologists at the Patuxent Wildlife Research Center and at 

 the Bird and Mammal Laboratories in the Smithsonian Institution for 

 providing valuable information. 



A number of scientists at Universities and Cooperative Wildlife 

 Research Units, National Park supervisors and biologists, National 

 Wildlife Refuge Managers, and State Fish and Game Agents were con- 

 tacted personally, or by telephone and letter. To each of them who 

 responded with pertinent data, sincere thanks is given. 



