178 



Saunders, Recording Bird Songs. 



Duration \n Seconds 



[ Auk 

 LApril 



Fig. 5. Song of the Red-winged Blackbird. Gunhill Road, New York City, 

 April 3, 1914, 8.30 A. M. 



Fig. 6. Song of the Robin. West Haven, Conn., April 17, 1914, 5.30 P. M. 



