Fisherman over the marsh

Last weekend as we departed the Great Marsh, we heard a cry from above. Then we saw this osprey flying back and forth over the marsh with a definite interest in my presence. It turned out that he was bothered how close I was to a nest in a tree near me. Once I walked away from this tree, he (I am sure this was the male counterpart of the family as the mom was already sitting in the nest protecting chicks) flew over to the nest.