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

                   IN RELATIOU TO WIL)D LIFE 
               All forestry projects should be developed in 
 a way that will recognize and encourage wild life as a secon- 
 dary crop. These crops must be managed in complete harmony 
 and coordinatec through a long term program based on a clear 
 understanding of the needs of each. To neglect wild life is 
 a failure to use the land to capacity. 
               Suitable areas have been set aside from time to 
 time dedicated to a particular use and upon which development 
 is intensified to produce the crop desired. These plots are 
 valuable as experimental projects and should be the subject 
 of much research and study, and the knowledge gleaned from 
 each should be combined into a well-knit plan to be followed 
 in the rest of the forest. 
               Fire prevention is of first importance and 
 graveling, brushing out roads and fire lanes, the construc- 
 tion of water holes, and patrol during the dry months must 
 never be neglected. The openings in the forest created by 
 the construction of fire trails, and the work done in the 
 process of construction is of great value to wild life. 
 Brush piles should not be left in these lanes except in open- 
 ings where there is no other cover. 
              Light and sun benefit the forest and are neces- 
 sary to maintain wild life, so we should plan our work with 
 these facts in mind. By avoiding solid plantations we benefit 
 the forest and encourage wild life. To improve and hasten 
 to maturity our timber crop and to assure a sustained yield 
 of wild life, plantings should be made in blocks, giving each 
 plantation an opportunity to g;et a good start before planting 
 the next. This practice will sweeten and improve the soil 
 and prepare it for planting, thereby i-1proving the quality 
 and growth of the crop trees as well as furnishing a habitat 
 for wild life. 
              Hardwoods are desirable from a forestry view- 
point as well as being a distinct asset to wild life and a 
mixed composition should, therefore, be encouraged and main- 
tained as such. Black locust or other nitrogen fixing trees, 
mountain ash and Washington thorn should be planted adjacent 
to conifers for, by so doing, food and protection are furnished 
to our wild creatures. 
              Wherever possible, the brush patches should be 
preserved as they are used by all species of wild animals and 
birds. Our insectivorous birds nest and feed here, so by 
saving them we help the forest. Brush patches are a valuable 
ecological factor too important to be destroyed. 
              Brush swamps should be left as natural as possi- 
ble, thereby forming a break in the surrounding forest with 
the resulting increase in border strips. Tree swamps, is de- 
veloped, should be treated by cutting out the soft maple of