Homing pigeons can build on the knowledge of previous generations, study shows

The ability to develop and accumulate knowledge and intelligence across generations might seems like a feat reserved for humans – but a new study on homing pigeons begs to differ.

Studying more than a thousand homing flights, scientists from the Department of Zoology at Oxford University found pigeons were able to learn from each other, improving their performance over generations – even outperforming more experienced birds by using previous generations’ knowledge.

Pigeons
(Peter Byrne/PA)

The researchers strapped GPS devices to 60 pigeons and separated them into three groups. They then separated the birds into one group flying solo, another always flying with the same partner and the last switching partners every half a dozen flights.

In the pair where the partner was switched, the most experienced bird was replaced, leaving the more “naive” bird to take charge of a new bird which didn’t know the route. In a pigeon sense – this is something like the student becoming the teacher.

The birds’ performances were analysed by looking at the route they took, and the results showed – after just a few flights – the pairs which changed partner chose a more efficient route than the generation before them.

Pigeons sitting
(Jonathan Brady/PA)

Furthermore, it was shown that after just four generations, the experimental groups outperformed those pigeons flying solo or with the same partner – despite the individual birds having flown the route fewer times.

The scientists say the results are indicative of a process called Cumulative Cultural Evolution (CCE) – a characteristic “frequently argued to be unique to humans”.

“Our results satisfy the main criteria for CCE and suggest potential mechanisms for CCE that do not rely on complex cognition,” write authors Dora Biro and Takao Sasaki.

Pigeons flying
(Owen Humphreys/PA)

Christine Caldwell, a psychologist from the University of Stirling – who was not involved in the study, told Science.com it is “a really exciting development” in the field of study.

The scientists’ findings are published in Nature Communications.

Email Updates

Receive our lunchtime briefing straight to your inbox

More in this Section

Watch: Brave homeless man describes rush to help young victims of Manchester attack

23 moving photos from the Manchester vigil

Heroic woman cared for over 50 children at a hotel after Manchester Arena attack

Fans are tweeting Ariana Grande's 'One Last Time' performance to honour Manchester victims


Today's Stories

Demand for garda text alert scheme doubles

Cork girl, 15, fled Manchester Arena amid chaos

Leo Varadkar camp defy calls to defect

Hands-off warning as gloves come off as well

Lifestyle

Lorraine Kelly never felt better as she heads for 60

LauraLynn provide numerous services to families and support that is 'absolutely fantastic'

Making Cents: Why we need to eliminate waste from food budgets

Exploring synaesthesia - see sounds, taste colours, smell words

More From The Irish Examiner