TY  - RPRT
TI  - Pigeon homing: does initial orientation include a 'preferred compass direction'?
AU  - R Wiltschko
AU  - W Wiltschko
PY  - 1985
DO  - 10.1007/bf00615147
UR  - https://pubmed.ncbi.nlm.nih.gov/3837096/
ID  - 3837096
ER  -