tee hes Ue Deeb eOse NB’ OU, Lee tT WN 9 
worms and believes that DDT has reduced the earthworm population in the 
critical areas, and, hence there has been less opportunity for the robins to 
come in contact with the DDT in recent years. 
“From the above observations, it seems probable that most communities 
which carry on programs of spraying elms with DDT, can count on losing 
a good many of their robins and perhaps some of the other song birds. No 
one can blame people for doing whatever they can to save their trees, but 
apparently much more thought should be given to the consequences of ac- 
cumulation of poison in the soil accompanying some of the spraying and 
dusting campaigns. Perhaps in a case of this kind the problem centers 
around a decision as to whether the individual wishes to attempt to save 
his shade trees or run the chance of killing robins. 
“It is believed that we should be continually alert to the continuing threat 
to wildlife from some of the new and deadly insecticides that are now gen- 
erally available. For example, in the vicinity of Sheldon, Illinois, where 
dieldrin was used during the past two summers to control Japanese beetles, 
observations showed losses occurred virtually to the point of annihilation of 
many forms of wildlife in the treated area.” 
ft ia ft 
Audubon Gifts for Christmas 
THOSE OF YOU that are shopping for special Christmas gifts for your nature- 
loving friends should be reminded now that the Illinois Audubon Society has 
a good selection of nature study materials. The 7-power, 35-mm. binoculars 
handled by the I.A.S. are especially good buys; these can be obtained from 
our treasurer, Mr. John Helmer, 847 Ridge Avenue, Evanston, [linois. Our 
bird book selection includes the Peterson Field Guides at $3.75 each; “Ex- 
ploring Our National Parks” by Devereux Butcher at $2.50; Olin Pettingill’s 
“Guide to Bird Finding” at $6.00; several children’s bird books at $2.00 
with large color plates; and a selection of six nature study books, ranging 
from birds and insects to wild flowers, especially designed for children and 
beginners, at $1.00 each. Books may be obtained through Mr. Oliver C. Hey- 
wood, 306 N. Lincoln St., Hinsdale, Illinois. 
fi fi a 
More Screen Tours to Come 
Two FINE AUDUBON LECTURES have been presented so far by the Illinois 
Audubon Society at the Chicago Natural History Museum, Roosevelt Road 
at Lake Shore Drive, Chicago. Three more are scheduled for this season: 
Albert Wool in “Ranch and Range” on January 27, 1957; G. Harrison Ori- 
ans in “Great Smoky Skyland” on March 10; and George Regensburg in 
“Little Known New Jersey” on April 28. All Screen Tours are on Sundays 
and begin at 2:30 p.m. However, if you would like to meet some of the I.A.S. 
directors and your fellow members, you are invited to join the group in the 
cafeteria in the basement of the Museum at about 1:00 p.m. preceding the 
lecture. (The food is good.) And come early in any case, so that you can 
see the display of books and pick up some literature in the theater lobby be- 
fore the movie begins. 
