when do puffins fledge
The fledging period is very variable, ranging from 34 to 60 days, depending on the area and year. Adult birds desert their young shortly before they are ready to leave the nest. The timing of the breeding in puffin colonies is highly synchronised, and so the departure of all adults takes place within a few days. The young birds leave their nest burrow and make their way to the sea, normally under cover of darkness to avoid predators.