• Hoopoe chicks hatch naked and weak, but grow quickly because their parents bring them calorie-rich food up to 45 times per hour.

Eurasian hoopoes experience several developmental stages, beginning with the “embryo” stage when development occurs inside an egg. The “nestling” stage follows, during which the young are fed insects by their parents and lasts from one to four weeks. Subsequently, the species enters the “rapid growth post-fledgling” stage, a period of learning to fly and forage for food that can extend from four weeks and one day up to one year. The “adult” stage, when the bird is capable of reproduction, begins after this and lasts from one to nine years. The age of sexual maturity for Eurasian hoopoes ranges from nine months and one week to one year and three months. A typical lifespan for the species is from eight years and four months to thirteen years and eleven months, although the maximum recorded lifespan is eleven years and one month, with a theoretical lifespan ranging from seven years and ten months to eleven years and two months.