Visual display of the Aldo Leopold papers : 9/25/10-3 : County, State and Foreign Files

				
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Research: Refine and improve the technique of lake restoration by finding

 
what constitutes nesting cover for the 7 species still nesting in Iowa. 
 
How can nesting capacity be increased? What are the causes of nest 
 
mortality? Juvenile mortality? Can re-occupation of idle breeding grounds

 
be hastened by planting breeding stock? Find by banding the survival 
 
value and returning progeny of such plantings. What factors limit the 
 
southerly extension of the breeding range? Can they be controlled? Are 
 
grits a factor? How does the sex-ratio affect breeding behavior or success?

 
         Does early opening deplete local stock? What is the crippling 
 
loss in various types of shooting? Can shooting practices be regulated 
 
to reduce it? 
 
         What foods can be developed in the artificial lakes of southern
Iowa? 
 
         Develop data, through a system of selected observers, on the 
 
status and trend of Jacksnipe, woodcock, and upland plorer. What spots 
 
in the state refuges need to be altered for their special accomodation? 
 
          What is the status of the mourning dove? Is an open season 
 
warranted in any part of the state? 
 
          Do breeding wood ducks depend mainly on hollow trees, or are 
 
ground-sites sufficient to hold them on waters otherwise suitable? 
 
          Cooperate with the Biological Survey in migratory bird research.

 
 Get the Upper Mississippi Refuge 4* undertake research of inter-state interest

 
 suitable for its lands. 
 
 
                               Rabbit Program 
 
 Research: Does holing up act as an automatic check against overshooting?

 
          Under what conditions do cottontails render the best buffer 
 
  

					
				
					
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service to game birds? What response in cottontails follows cover 
 
and food improvements for game birds? 
 
         Are there disease relationships between cottontails and game birs
? 
 
         Do jackrabbits tend to exclude cottontails? 
 
         Cooperate with the Michigan cottontail investigation. 
 
 
                         Miscellaneous Program 
 
         Bring into state ownership the 'jungles" of the Missouri bottoms,

 
and operate as a public shooting ground, with itterspersed refuges for 
 
waterfowl, deer, and pheasants. Move the Shelby deer herd to this area. 
 
         Bring into state ownership the clay bluffs along the Missouri 
 
and manage for quail, turkey, and pheasants. A refuge for sharptail 
 
and -nev-t-.ik bbep should form a part of this area. The protection of these

 
bluffs from grazing is essential to prevent the silting of drainage ditches

 
and lakes in the adjoining bottoms. 
 
          Restock with wild turkey suitable public areas in southeast 
 
 and northeast Iowa. 
 
          Have the wardens census all heron rookeries and other foci of 
 
 ornithological interest, and report their status annually. 
 
          Arrange with Ames Forest School and Bureau of Soils to offer 
 
 technical service and planting stock at cost to farmers desiring to 
 
 combine erosion-control and game cover. 
 
          Consider revision of the present woodlot tax law to provide 
 
 for registration and inspection of areas. 
 
          Offer technical service to railroads and highway officials 
 
 willing to leave game cover.