SOME RECENT FINDINGS 
IN THE INHIBITION OF AVIAN REPRODUCTIVITY 
SIX SEMINAR PAPERS 
by 
Roy D. Crawford, Pedro F. Consuesra, Raymond P. Coppinger, 
Macreay J. Landy, Ralph G. Somes, Jr., Bernard C. Wentworth, 
D. K. Wetherbee, Editor 
ik Sexinat conducted in 1961 by the Department of Poultry 
Science, University of Massachusetts, and the Massachu- 
setts Cooperative Wildlife Research Unit, supported by 
the University of Massachusetts, the Massachusetts Divi- 
sion of Fisheries and Game, the United States Fish and 
Wildlife Service, and the Wildlife Management Institute. 
UNITED STATES DEPARTMENT OF THE INTERIOR 
Fish and Wildlife Service 
Bureau of Sport Fisheries and Wildlife 
Special Scientific Report--Wildlife No. 67 
September 1962 

