• The maximum lifespan of the eurasian jay is 22 years. This is a record among birds living in Europe.

The Eurasian jay’s typical lifespan ranges from 10 years and 2 months to 16 years and 11 months, with a maximum recorded lifespan of 13 years and 6 months, and a theoretical lifespan between 12 years and 8 months and 18 years and 1 month. The species reaches sexual maturity from 2 months and 2 weeks to 2 years of age; an embryo develops inside the egg for approximately two and a half weeks. The nestling stage involves the young being fed insects and other food by its parents, lasting from 2 weeks and 4 days to 1 month and 1 week. Following this, the post-fledging rapid growth stage sees the young bird learning to fly and forage independently for between 1 month and 1 week and 1 year. The adult stage lasts from 1 to 20 years, during which time the bird may seek a mate and raise young.