An oystercatcher aged 18 years 1 month is like a human aged 56 years 11 months
If an oystercatcher is 18 years 1 month old, that is like a human aged about 56 years 11 months (accuracy ±4 months 4 weeks). The calculation uses the average and maximum lifespans and the age of maturity of both species, so the ratio is not linear.
How old is an oystercatcher aged 18 years 1 month in human years?
About 56 years 11 months (accuracy ±4 months 4 weeks).
Why is the age not converted linearly?
Species age unevenly: childhood, maturity and old age take a different share of life, so the calculator matches the life stages of both species.
Can I choose another age or species?
Yes, the page has the calculator: pick the species, sex and age, and the result is recalculated.