03 July 2017 - Ready to Leave the Nest?
Now that the chicks are about 7 weeks old we have been starting to see a lot of pre-fledging behaviour. They have been stretching their wings a lot and sometimes lifting off the nest a few inches while flapping.
Ospreys tend to take their first flight about 50-56 days old1. The older chick (PH2) is now 51 days old and the younger (PH1) is 46 days old. However, females tend to be heavier and so lighter males will often fledge before their sisters. It is hard to say who will make the leap first as the male (PH1) is a full five days younger.