Hawk / Northern Harrier? Neither, it's an Osprey

I had some lovely photo opportunities yesterday while out walking with the dog, both of the heron that I posted earlier, and of this beautiful bird.  I have tried to determine what type it is, and think that it could be one of several different types of hawks.  But while looking through birding websites and photos, I realized that photos I posted earlier, of what I thought to be a cooper’s hawk, may in fact have been a juvenile northern harrier.  Regardless of what we call them, they are wonderful to watch.  Maybe one of these days, I will see them under blue skies rather than the stark grey we had yesterday.  At least it waited to rain until after I got in the car!

Update: I ran into a lovely couple from the Alouette Field Naturalists group, and they took a look at these photos and told me this is an Osprey.  They had been watching an Osprey rebuilding a nest that had been taken over by a Canada goose.