THE ILLINOIS AUDUBON SOCIETY NomProfit: Ora 
Chicago Natural History Museum U. S. POSTAGE 
Roosevelt Road and Lake Shore Drive PAID 
Chicago, Illinois 60605 | DOWNERS GROVE 
RETURN REQUESTED ILLINOIS 
PERMIT NO. 18 
Harlow B. Mills, Chief 
IlL. Natural History Survey 
Urbana, II. 
THE ILLINOIS AUDUBON SOCIETY 
The Society was organized over sixty years ago for the protection 
of wild birdlife. Throughout its existence the Society has promoted 
measures to protect birds and to prevent destruction of the natural areas 
that birds need for their survival. In many cases the Society has worked 
to see that existing laws are observed, since mere enactment of laws 
has not guaranteed their enforcement. We invite you to join us in advanc- 
ing the cause of wildlife conservation and in cooperating with all other 
organizations which work for the protection of our natural resources. 
Headquarters of the Society are at the Chicago Natural History 
Museum, Roosevelt Road and Lake Shore Drive, Chicago 5, where literature 
and information may be obtained, and where public lectures are held. 
Your support as a member is earnestly solicited. Membership fees are: 
Active Members 2... 00.5 0600.0 a5 $3.00 annually 
Contributing Members .......... $5.00 annually 
Clb VASIBtION: Ries here saa $5.00 annually 
Sustaining Members ............ $10.00 annually 
PEATENINLETIDELS og i048 gt dian Galea a er oe aie $100.00 
*Benelactors. isu sie ee Ok Gy ee ae $500.00 
PPACL OTIS i idjcs ee SUA 6% Bate Ue Uh Moe $1,000.00 
*Payable in installments of $25.00 or more. 
Memberships and Address Changes 
New or renewal memberships in the Society should be sent to Mr, John 
Helmer, Treasurer, Illinois Audubon Society, 2805 Park Place, Evanston, 
Illinois. Change of address notices should be sent to Mr. Paul Schulze, 
Membership Chairman, 622 S. Wisconsin Ave., Villa Park, Illinois. 
THE AUDUBON BULLETIN is the official journal of The Illinois Audubon 
Society and is published quarterly — March, June, September, and Decem- 
ber. Subscription price is $3.00 per year, which coincides with dues for an 
active member. Single copies, 75 cents. 
EDITORIAL OFFICE: 22W681 Tamarack Drive, Glen Ellyn, Ill. 60137 
