Third-party imitation is not restricted to humans.

Area of Science:

• Ethology
• Comparative Psychology
• Animal Cognition

Background:

• Human cultural evolution relies heavily on imitation, including learning intransitive gestures and norms from observing others.
• Third-party learning, where individuals learn by watching interactions between conspecifics, is common in humans but its presence in other species is unknown.

Purpose of the Study:

• To investigate third-party imitation in undomesticated blue-throated macaws (Ara glaucogularis).
• To determine if macaws can learn intransitive actions passively by observing conspecifics.

Main Methods:

• A test group of macaws observed a demonstrator performing rare intransitive actions in response to gestural commands.
• Following observation, the test group received the same commands and rewards, while a control group did not observe demonstrations.
• Performance was measured by the number of learned actions, learning speed, and accuracy.

Main Results:

• The test group learned significantly more actions (mean=4.16) than the control group (mean=2.2).
• The test group learned target actions significantly faster and performed them more accurately.
• Some macaws in the test group spontaneously imitated actions before receiving commands or rewards.

Conclusions:

• Third-party imitation, even for intransitive actions, exists in blue-throated macaws, challenging the notion of its exclusivity to humans.
• This capacity facilitates rapid adaptation to group-specific behaviors and may contribute to cultural conventions in parrots.
• Findings suggest that passive social learning plays a significant role in avian behavioral flexibility and cultural transmission.