Initial evidence for eliciting contrafreeloading in grey parrots (Psittacus erithacus) via the opportunity for playful foraging

• Published in: Journal of comparative psychology (Washington, D.C. : 1983) Vol. 135; no. 4; p. 516
• Main Authors: Smith, Gabriella E, Greene, Diana, Hartsfield, Leigh Ann, Pepperberg, Irene M
• Format: Journal Article
• Language: English
• Published: United States 01.11.2021
• Subjects: Animals; Humans; Parrots

Contrafreeloading is the choice to perform a physical task to access food over freely available food, a behavior pattern contrary to the predictions of both optimal foraging and learning theories. This study examined the presence and degree of contrafreeloading in Grey parrots (Psittacus erithacus)...