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Dr. Yeatter is nationally known for his classic work on the Prairie 
Chicken, and his studies have served as the basis for management of 
successful flocks in Wisconsin, Nebraska, and Kansas. In his quiet way, 
he has championed the cause of this symbol of the prairie states for over 
three decades. 
Dr. Yeatter served on the National Committee on the Prairie Chicken. 
A report of this committee was placed in the Congressional Record by 
Senator Dwight Griswold of Nebraska on March 13, 1953. For over 27 
years, Dr. Yeatter made observations of the Prairie Chicken near Hunt 
in Jasper County, Illinois. In private talks, in public speeches, in pamphlets, 
and letters to state officials and conservation groups, he urged efforts to 
save the species. 
In 1955 an attempt was made by a handful of persons to form a state- 
wide committee with this objective in mind. The leadership for such a 
movement was not forthcoming at that meeting in Princeton, Ill. Later 
the Natural Resources Council of Illinois sponsored a session on the pre- 
servation of the Prairie Chicken during its Conferences at the Lorado 
Taft Campus at Oregon, IIl., in 1958. A committee was formed which later 
led the establishment of the Prairie Chicken Foundation of Illinois, com- 
posed of four state conservation groups. 
While presenting a special plaque to Dr. Ralph Yeatter at the Annual 
Meeting of the I.A.S. in Springfield this May, President Raymond Mostek 
said that Dr. Yeatter could always be depended upon to give the Society 
a full measure of cooperation, and that “as Dr. Yeatter faces the sunset 
years of his life, he is secure in the knowledge that he has become immortal 
in his own lifetime.” The remark had reference to the 77-acre refuge near 
Bogota, Ill., which was recently named “The Dr. Ralph Yeatter Sanctuary” 
by the Prairie Chicken Foundation of Illinois. 
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The Illinois Audubon Society 
Presents to 
Dr. Ralph Yeatter 
Member 
Board of Directors 
1935221958 
This Citation 
In grateful recognition of many years | 
of outstanding service and devotion 
to the cause of Illinois wildlife and 
the preservation of natural habitats. 
Presented at Springfield, Ill. 
May 4, 1963 
Raymond Mostek, President 
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