THE ILLINOIS AUDUBON SOCIETY 
Non-Profit Org. | 
Field Museum of Natural History U. S. POSTAGE | 
Roosevelt Road and Lake Shore Drive PAID 
Chicago, Illinois 60605 | DOWNERS GROVE 
RETURN REQUESTED ILLINOIS 
PERMIT NO. 18 
tha 
ILL. STATE NAT. HIST.LIBRARY, 
NATURAL RESOURCES BLDG., 
URBANA, ILLINOIS 61803 
THE ILLINOIS AUDUBON SOCIETY 
The Society was organized seventy 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 which 
birds need for survival. In many cases, the Society has worked to see 
that existing laws are observed — since mere enactment of laws never 
has guaranteed their enforcement. Illinois residents of all walks of life 
are invited to join the IAS in advancing the cause of wildlife conservation, 
as well as in the Society’s cooperative efforts with all other organization 
which work for protection of our natural resources. " 
— 
Headquarters of the Illinois Audubon Society are in the Field Museum 
of Natural History, Roosevelt Road & Lake Shore Drive, Chicago 60605, 
where literature and information may be obtained, and where public 
lectures are held. Individual and group membership support is earnestly 
solicited. Membership fees are: ‘ 
PATRON $1,000 
BENEFACTOR $ 500 
LIFE MEMBER $ 100 
SUPPORTING MEMBER $25 annually 
CLUB AFFILIATION $15 annually 
CONTRIBUTING MEMBER $10 annually 
ACTIVE MEMBER $ 5 annually 
Memberships and Address Changes 
notices, should be sent to Mr. Paul Schulze, IAS Treasurer, 622 South Wisconsin Avenue, 
Villa Park, ill. 60181. 
THE AUDUBON BULLETIN is the official journal of The Illinois Audubon Society and is 
published quarterly — in March, June, September, and December. The subscription price 
is $5 per year (which coincides with dues of active members). Single copies are $1.25. The 
special subscription rate for libraries and schools is $3.00 per year. | 
EDITORIAL OFFICE: 49 Valley Road, Highland Park, Ill. 60035 
