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DREDGING OF KEOKUK POOL MAY RUIN HABITAT FOR DIVING DUCKS 
As previously reported in the February issue of the Newsletter, the Army Corps of Engineers plans to dredge a nine foot 
channel in the Keokuk pool, between Fort Madison and Keokuk, lowa. Edward Brigham III, North Midwest Regional 
Representative of the National Audubon Society, states that the Corps plans to begin dredging in the spring of 1971 and 
complete the project in June 1972, provided that funds are made available. 
Brigham says that dredging will alter the aquatic environment and the resulting siltation may cause the loss of the fingernail 
clam, which is the main food of the lesser scaup, the most abundant duck on the pool. Severe pollution on the Illinois River 
and the accompanying loss of this clam and other small mollusks, has caused migrating ducks, which once used the Illinois, to 
switch to the Mississippi River and the Keokuk Pool. 
It is estimated that 90% of all the diving ducks on the Mississippi Flyway use the Keokuk Pool; the principal species being: 
scaup, ring neck, canvasback, and common goldeneye. In addition to its importance to waterfowl, the area, known as Pool 
19, supports an important commercial fishery for channel catfish, carp, freshwater drum, buffalo and others. Of the 24 pools 
in the Mississippi River system, only two others yielded greater total catches. 
Brigham suggests that concerned conservationists make their opinions known to Secretary of Defense Melvin Laird, Sen. 
Jennings Randolph - Chairman of the Senate Public Works Committee, and Rep. George Fallon - Chairman of the House 
Public Works Committee. 
DEPARTMENT OF INTERIOR ENDS COOPERATIVE MIGRATION PROGRAM 
In 1883, the Division of Economic Ornithology initiated a cooperative program for gathering information on the 
distribution and migration of all species of North American birds. Since 1953, this program has been limited to a list of 
key species; and now the Department has decided to terminate several projects related to bird migration studies. 
Therefore, all observers are requested to report significant observations to their local ornithogical journal and to the 
Regional Editors of Audubon Field Notes. In this area, the editor is: Peter C. Petersen, 235 McClellan Blvd., 
Davenport, lowa, 52803. 

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WISCONSIN AUDUBON CAMP ANNOUNCES SUMMER SESSION 
The National Audubon Society’s camp is located in Sarona, Wisconsin, which is about 117 miles northeast of Minneapolis. 
There are four two-week sessions beginning June 28 and ending on August 21. The fee for a two-week session is $150. 
The camp provides a natural history program for those who would like to learn more about the outdoors. Private rooms 
are available for married couples, others share dormitory accommodations, and everyone shares bathroom facilities. Although 
the program is not strenuous, campers must be in good health and plan to participate in the full program. Campers must be at 
least 18 years old to attend, but need not be members of the National Audubon Society. 
The Society also operates camps in Connecticut, Maine and Wyoming. Further information may be obtained by writing 
the Society at 1130 Fifth Ave., New York, N.Y. 10028 or Illinois Audubon Society. 
DEADLINE FOR AUGUST ISSUE - The deadline for the next issue is July 4. Please submit single-spaced copy to: 
Judith Joy, Box 3, Centralia, II]. 62801. 






















