ArticleAnimals : an open access journal from MDPI2023
Contrafreeloading Indicating the Behavioural Need to Forage in Healthy and Feather Damaging Grey Parrots.
Article in Animals : an open access journal from MDPI, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 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
5 citing papers in PubMed, 6 citations in OpenAlex.
- Functionally Relevant Feeding Enrichment: An Examination of Nectar Feeding Devices With Two Species of Parrot.Veterinary medicine and science · 2026Article
- Contrafreeloading and its influencing factors in budgerigars (Animal welfare (South Mimms, England) · 2025Article
- Food Grinding Behavior: A Review of Causality and Influential Factors.Animals : an open access journal from MDPI · 2024Review
- Celebrating Women in Science: Pioneering Contributions to Animal Behaviour and Welfare.Animals : an open access journal from MDPI · 2024Article
- What are the priority welfare issues facing parrots in captivity? A modified Delphi approach to establish expert consensus.Animal welfare (South Mimms, England) · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Contrafreeloading (CFL) is a concept that describes the preference of an animal to work for food even when identical food is freely available, and reflects an intrinsic motivation to engage in foraging-related activities. However, altered brain neurochemistry, which can be induced by chronic exposure to a suboptimal living environment, may affect this intrinsic motivation in animals with abnormal repetitive behaviours (ARBs), including parrots with feather damaging behaviour. To determine whether this was the case, we evaluated CFL activity in healthy (
Indexed as
Identifiers
What OpenQuestion holds
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.