The second eyas refuses to fledge.  Its sibling left on Sunday, but it still remains on the nest. 

We had lots of discussions up at the nest tonight, about dates (I had originally estimated the fledge date would be June 15th), if the first had fledged too early, and if there had been three chicks with one dying prematurely could these two hawks be four days apart in age, etc.

The delayed fledging of the second eyas and the return of the fledgling to the nest the first night make this a very unusual fledge.

I arrived around 6:20 p.m. to learn that there had been a very noisy encounter with a pair of Peregrine Falcons.  The action was over, however, and everything seemed peaceful when I arrived.