TY  - BOOK
AU  - Wills,Philip Aubrey
TI  - On being a bird
U1  - 629.1323 
PY  - 1953///
CY  - London
PB  - Max Parrish
KW  - Aerodynamics
KW  - Flightless birds
KW  - Airplanes
KW  - Study and teaching
KW  - Flight
KW  - Gliders(Aeronautics)
N1  - Includes bibliographical reference and index
ER  -