TY  - BOOK
AU  - Ford,Barbara
AU  - Combs,Bob
TI  - How birds learn to sing
SN  - 0671327283.
AV  - QL698.5 .F67
U1  - 598.2 F699 1975 
PY  - 1975///
CY  - New York
PB  - J. Messner
KW  - Birdsongs
KW  - Juvenile literature
KW  - Birds
N1  - Includes index
N2  - Discusses the song of different birds and the learning involved in their sound-making
ER  -