THE ILLINOIS AUDUBON SOCIETY 
1017 Burlington Avenue 
Downers Grove, Illinois 60515 
RETURN REQUESTED 
PAT HIST, LIBRARY, 
Tb. 2S) BgOURCES. BUILDING, 
URBANA, iLb. 61808 
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 te 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 organizations 
which work for protection of our natural resources. 
Headquarters of the Illinois Audubon Society are in the Field: Aude 
of Natural History, Roosevelt Road & Lake Shore Drive, Chicago 60605 
where public lectures are held. Individual and group membership sup 
port 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 
Family Membership $7.50 annually 
Active Member $5 annually 
SUBSCRIPTIONS, MEMBERSHIPS, CORRESPONDENCE: 
THE AUDUBON BULLETIN is the official journal of the Illinois Audubon Society. It i: 
published quarterly--in March, June, September, December. The subscription price is $5.06 
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. | 
New and/er renewal membership applications to the Society, as well as change of 
address notices, should be sent to Illinois Audubon Society Regional Headquarters, 1007 
Burlington Ave., Downers Grove, II]. 60515. 
EDITORIAL CORRESPONDENCE & MANUSCRIPTS should be directed to the editor 
D. W. Bennett, 49 Valley Road, Highland Park, ill. 60035, ; 
7 
) 
