Feather plucking: which species are actually most at risk? A survey of 2,331 households
Published by Planète Pets · managing editor: Clément Lacaille · how our guides are written
"My bird is plucking its feathers — is that common for its species?" comes up often with avian vets, usually without a comparative figure to offer. A 2021 survey of over two thousand Japanese households finally puts real numbers on this, species by species. More of our care guidance is gathered in the bird care and grooming category.
Contents · 5 sections
What does the survey of 2,331 households show?
A study by Ebisawa, Nakayama, Pai, Kinoshita and Koie, published in 2021 in PLOS ONE, ran an online questionnaire among parrot owners across Japan and collected 2,331 usable responses. Overall feather-damaging behavior prevalence came out at 11.7%, in line with earlier Western studies. But the gap between species is stark: cockatoos showed a raw prevalence of 30.6%, lovebirds 24.5% and African grey parrots 23.7%. After statistical adjustment for other factors (age, time owned, housing), the relative risk against reference species stayed high for cockatoos (adjusted odds ratio 9.46), lovebirds (6.79), African greys (6.74), Pacific parrotlets and related species (3.96), and conures (2.55).
Why do these species stand out more?
The study does not directly test the biological causes behind this gap, but the most affected species share documented traits: strong natural flocking behavior in the wild, a marked attachment bond to one person or partner, and, for African greys and cockatoos, high cognitive abilities that make boredom especially damaging. A solitary or under-stimulating setup likely weighs more heavily on these species than on less socially demanding ones.
What this survey does not show
The questionnaire relies on owner self-report, not a vet diagnosis: some reported plucking may be ordinary preening misread as a problem, or conversely go unnoticed if the owner isn't paying attention. The sample is Japanese, with husbandry and housing habits that sometimes differ from those seen elsewhere. Above all, a high odds ratio signals a statistical association, not an individual certainty: most cockatoos and African greys in this survey showed no plucking at all.
What this means before adopting or setting up for a bird
- Plan enrichment from day one for the higher-risk species (cockatoo, lovebird, African grey) rather than waiting for signs to appear, building on our guide to feather-plucking solutions.
- Don't overreact to a single plucking episode in these species: the elevated prevalence in this survey remains a minority, not a majority.
- See a vet early at the first signs in a higher-risk species, to rule out a medical cause before assuming a behavioral one — cockatoo-specific pointers are detailed in our guide to feather plucking in cockatoos.
Frequently asked questions
Are budgies or canaries covered by this elevated risk?
They do not appear among the high-adjusted-risk species in this survey, consistent with a lifestyle less centered on a strong individual bond in captivity.
Is a cockatoo that plucks doomed to keep doing it?
No: the survey measures prevalence in a population at one point in time, not an individual trajectory. Many cases improve markedly with suitable enrichment and, if needed, veterinary input.
Should you avoid adopting a higher-risk species?
No, but the choice should come with a realistic commitment of time and enrichment resources, matching these species' already elevated needs. Find all our guides in the bird hub.
See it in the Planète Pets shop: Flexible pastel cotton rope perch, 35 cm, for budgies and cockatiels (€32.90) · the whole shop
This guide is part of Planète Pets’s Birds universe. Our advice is general in nature: for any health concern, your veterinarian remains the only reference.
