Ospreys (Pandion haliaetus) in my area have been building nests in all kinds of places, including on some channel markers in the Potomac River off of Occoquan Bay National Wildlife Refuge. I personally don’t really think that there is enough space there for a nest, but the ospreys seem to think otherwise.
I am amused by the “No wake” sign that they have chosen. During busy periods, I would think that “No sleep” would be more appropriate.
Have a wonderful weekend. 🙂
© Michael Q. Powell. All rights reserved.
Mike Powell 
Fun photo Mike. I like the sign, your comments, the beautiful Potomac; and I agree with you, looks a little narrow for one of their massive nests.
Thanks, Jet. I have a quirky sense of humor and realize that many folks will not “get it.” Have a beautiful weekend.
Amusing photo, Mike. Once the chicks are born, there will be little sleep!
Like all parents, the ospreys will be busy. The good news, I think,is that both parents stay around. With some of the ducks in my area, the Dad disappears and the burden falls totally on the female.