PERSON@1 -LRB- NUMBER@1 - September NUMBER@2 , NUMBER@3 -RRB- was an MISC@1 Grey Parrot and the subject of a thirty-year -LRB- NUMBER@4 -RRB- experiment by animal psychologist PERSON@2 , initially at the ORGANIZATION@1 and later at ORGANIZATION@2 and ORGANIZATION@3 .

Purpose He was part of a study under animal psychologist PERSON@2 since NUMBER@5 at two different universities : ORGANIZATION@3 in LOCATION@1 and before that , ORGANIZATION@1 .
