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PE hes 
THE ANSWER TO PESTICIDES 
Night-flying bats locate insects by the radar method of squeaking and listening for 
the echo bouncing from their prey. Insects pick up the sound waves, too, and seek 
to escape, Research men in the U.S. Agriculture Department are testing the use of | 
electronics to imitate bat cries and eliminate the boll worm from cotton fields, : 
AN INTERESTING PUBLICATION 
"The Living Museum" is an interesting and informative monthly publication of the 
Tilinois State Museum, Springfield. It is free upon request to the Museum. 
DEPARTMENT OF INTERIOR CURBS USE OF PESTICIDES If ITS JURISDICTION 
Secretary of the Interior Udall recently advised Interior agencies to avoid using 
"compounds. which are known to concentrate in living organisms, such as DDT, 
. chlordane, dieldrin and endrin." This covers 550 million acres, 
CET READY FOR THE BIRD HOUSE LEASING SEASON 
The U.S, Fish and Wildlife Service lists more than 50 kinds of birds that can be 
persuaded to move into bird houses, Some aids to getting a bird to sign a lease 
are: erecting a bird bath and putting out a supply of nesting materials-twigs, 
short bits of string, cotton,wool, feathers, dried grass, excelsior, etc, Robins : 
prefer a nesting shelf rather than an enclosed box, It should be located under the 
eaves of a porch or garage. Wren houses should have an oblong entrance to make it 
easier for the bird to bring in twigs, Flickers like an outside perch just below 
the entrance and carpeting of sawdust inside the house. 




| ILLINOIS AUDUBON SOCI&TY See CeO 
Chicago Natural History Museum | image 8 | 
® 2 ~e) } 
Roosevelt Road & Lake Shore Drive 
Chicago, Illinois 60605 P-A-I-D 
Downers Grove, 
Illinois 
Permit No. 18 
Oe eS 
Pericdical Divisicn 
University of II1l. Library 
Urbana, Illinois 



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