Source checked 12 November 2026. PawLine editorial team. Not professionally reviewed.
Research-reading information, not veterinary advice or an individual prognosis. No countdown or remaining-years estimate. A present health concern needs an appropriate avian professional; do not wait for a worksheet or an app reply.
Three dates can all be real
A journal publication date says when an analysis appeared. A data cutoff says which observations were available. A file's upload path may reflect a later move to a website. None of those is automatically the date a bird was observed or a guarantee that a source describes current care.
The older study is still useful in scope
The historical zoo analysis explains why maxima, medians and living-age summaries differ. That remains useful reading practice. Its historical records should not be relabeled as a fresh survey of today's companion birds, and this site does not publish its species table as a modern pet lifespan chart.
A newer model is not a personal update
The 2022 comparative study asks research questions about species life expectancy and relative brain size. Its later date does not turn it into a veterinary assessment of a particular bird. Differences between studies require attention to methods and populations, not an assumption that the newest headline replaces every older statistic.
Keep a checked-on date with the link
These sources were fetched on 12 November 2026. That is this site's reading date, not a new peer-review date. The World Parrot Trust article is May2012 even though its current file path contains2025. The temporary note lets a reader record dates without changing the source's meaning.
Sources and limits
Young et al.: Survival on the ark, Animal Conservation (2012)
Smeele et al.: Coevolution of relative brain size and life expectancy in parrots (2022)
Anna Young / World Parrot Trust: Long Live the Parrot, May2012