TY  - BOOK
AU  - Mock,Douglas W.
ED  - Scientific American
TI  - Behavior and evoluation of birds: readings from Scientific American Magazine 
SN  - 0716722372
PY  - 1991///
CY  - New York
PB  - W. H. Freeman
KW  - Birds
KW  - Behavior
KW  - Evolution
ER  -