ArticleBiology letters2025
Task affordances shape hornbills' problem-solving strategies.
Article in Biology letters, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Learning pathway determines motor organization and long-term retention of tool use in hornbills.iScience · 2026Article
- Task affordances shape hornbills' problem-solving strategies.Biology letters · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
1 author.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Innovative problem-solving in birds has traditionally focused on corvids and parrots, but growing evidence shows that many other bird species are also capable of such feats. The vertical string-pulling paradigm, a hallmark test of avian cognition, requires birds to retrieve suspended food by incrementally pulling the string with their bill while securing it with their foot, demonstrating sensorimotor flexibility and the capacity to perceive some of the task's properties. However, Oriental pied hornbills (
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.