Birds / Observational gesture study
Sometimes the signal is something shown
Source year 2011 · Note reviewed 2026-10-04
Researchers observed ravens showing or offering non-food objects to other ravens, followed by attention to the object and social interaction.
What we reviewed · Selected evidence reviewed
Publisher abstract and figure captions reviewed; full methods and supplementary videos not obtained.
Not yet independently reviewed by a scientific specialist.
What this does — and doesn’t — establish
The abstract reports 38 interactions across seven pairs. The proposed role in testing or strengthening relationships is an interpretation, not proof of human-like declarative intent.
What we can build on
A future camera workflow should preserve recipient attention and object context, alongside sound.
See the related tools and reading paths →
The next reading task
Review gesture definitions, observation effort, alternative explanations and full methods before designing a related study.
Go to the sources
- Raven showing and offering gestures in the wild ↗
Pika and Bugnyar (2011). Publisher abstract and figure captions reviewed; full methods behind access controls were not obtained.
Original editorial note by Talk2Nature contributors. AI-assisted, source-grounded synthesis; not a peer review or an independent replication. Linked works retain their own rights.