TY  - BOOK
AU  - Orr,Robert Thomas
TI  - Animals in migration
U1  - 591.52 
PY  - 1970///
CY  - New York
PB  - Macmillan
KW  - Animal migration
KW  - Animal navigation
KW  - Animal homing
N1  - Bibliography: p. 271-288
ER  -