Not bird-brained: Chickens use prior experience to solve novel timing problems

Area of Science:

• Cognitive ethology
• Animal behavior
• Comparative psychology

Background:

• Birds are increasingly demonstrating cognitive abilities previously thought to be uniquely human, such as planning and problem-solving.
• Previous studies often utilized species with specialized behaviors or those in undomesticated environments, limiting broader comparisons.
• Chickens (Gallus gallus domesticus), domesticated over thousands of years, offer a unique model for studying cognitive flexibility in a common species.

Purpose of the Study:

• To investigate how domesticated chickens utilize past experience to solve novel problems in the double-bisection task.
• To compare chicken performance in the double-bisection task with existing data from pigeons, allowing for direct behavioral signature comparison.
• To explore the flexibility of learning and contextual sensitivity in chickens.

Main Methods:

• Chickens were tested on the double-bisection task, a paradigm previously used with pigeons.
• Performance patterns were analyzed to identify similarities and differences with pigeon performance.
• The study focused on how chickens used past experience to navigate novel challenges within the task.

Main Results:

• Chickens demonstrated flexible learning, showing sensitivity to the broader context of the task, similar to pigeons.
• Chicken performance patterns could be categorized into two distinct groups, potentially reflecting different engagement strategies during the timing task.
• Remarkable similarities were observed in how chickens and pigeons leverage past experience to solve novel problems.

Conclusions:

• Domesticated chickens exhibit cognitive flexibility and problem-solving abilities comparable to pigeons.
• The findings suggest that basic learning mechanisms like operant and respondent conditioning are more adaptable than commonly assumed.
• This research contributes to a growing understanding of complex cognition across diverse avian species, including domesticated ones.