Late staying osprey

Hi everyone, 

there is an osprey in the Rickmansworth area. Mr TF and I saw one couple of weeks ago, and one has been reported again today.  Is this normal? Seems rather late.  What does everyone think about why it might be hanging around, do any ever over winter? We thought the gale would have seen if off, of course it may be another one.  Trying to persuade mr TF to join the community so he can post his own photos!

TF

Toadflax.