We aim to test neophobia using a novel object test (beside familiar food) and a control test (familiar food alone). We are open to all possible sites (e.g. lab, zoo, field, private – providing appropriate ethical approval is obtained prior to data collection), species and sample sizes, irrespective of age, sex or prior history, and individual or social testing is possible (temporary isolation of individual or testing with aviary-mates otherwise) – please provide this information with data sheet. Testing is expected to take: minimum of 1 test round = 2 trials (1 x control, 1 x novel object, one test per day) or a maximum of 3 test rounds = 6 trials (same as minimum but with two repeats, over ~6 weeks, to allow for repeatability testing). We aim to complete data collection for this study by the end of 2022.