TY  - RPRT
TI  - Observational learning in budgerigars.
AU  - B V Dawson
AU  - B M Foss
PY  - 1965
DO  - 10.1016/0003-3472(65)90108-9
UR  - https://pubmed.ncbi.nlm.nih.gov/5882805/
ID  - 5882805
ER  -