They can fly as soon as they fledge. The parents will fly and swoop with them though.
Long-billed Cuckoo was created in 1858.
Long-tailed Cuckoo was created in 1787.
It takes about 13 days after hatching before a Bluet Robin to fly from the nest. This is after the mother has left them.
Baby cardinals typically fledge, or leave the nest, about 9 to 11 days after hatching. During this time, they are fed by their parents and grow rapidly. Once they fledge, the young cardinals may continue to be fed by their parents for a short period as they learn to forage on their own.
roadrunner
Herring gull chicks typically fledge between 6 to 7 weeks after hatching. During this period, they undergo significant development, learning to fly and forage for food. Fledging marks the transition from being dependent on their parents to becoming more independent as they begin to venture out on their own.
Between 10 and 19 days is commonly quoted amongst birdwatchers but eggs hatched in aviaries invariably take 14 days. While a longer incubation period for eggs laid in habitat could possibly be the result of disturbance, a shorter incubation period than 14 days is exceedingly unlikely.
Tawny Frogmouths fledge at 25-35 days.
Normally for several months, until they fledge and can hunt for themselves.
a cuckoo
After about three weeks they fledge, or take their first flight. They may stay in the nest another week.