biostudies-literatureHabl CAustrian Science Fund FWFe0186859https://www.ebi.ac.uk/biostudies/studies/S-EPMC5695585biostudies-literatureUnknown12(11)The ability to move an object in alignment to a surface develops early in human ontogeny. However, aligning not just your own body but also the object itself in relation to a surface with a specific shape requires using landmarks rather than the own body as a frame of reference for orientation. The ability to do so is considered important in the development of tool use behaviour in human and non-human animals. Aside from humans, with the exception of a single study on habitually tool using primates, shape-frame matching abilities remain largely unstudied. The Goffin's cockatoo is a generalist parrot, and not a specialised tool user but has shown the capacity to innovate and use different types of tools under controlled settings. We tested these parrots in a tool selection and tool use taskPloS oneThe keybox: Shape-frame fitting during tool use in Goffin's cockatoos (Cacatua goffiniana).PMC5695585P29075P 29084B19 J3404P 29075Habl CAuersperg AMIfalseThe keybox: Shape-frame fitting during tool use in Goffin's cockatoos (Cacatua goffiniana).The ability to move an object in alignment to a surface develops early in human ontogeny. However, aligning not just your own body but also the object itself in relation to a surface with a specific shape requires using landmarks rather than the own body as a frame of reference for orientation. The ability to do so is considered important in the development of tool use behaviour in human and non-human animals. Aside from humans, with the exception of a single study on habitually tool using primates, shape-frame matching abilities remain largely unstudied. The Goffin's cockatoo is a generalist parrot, and not a specialised tool user but has shown the capacity to innovate and use different types of tools under controlled settings. We tested these parrots in a tool selection and tool use task2017-01-01T00:00:00Z20172025-04-04T19:35:01.17Z2019-03-26T22:46:31ZS-EPMC56955852911724210.1371/journal.pone.0186859