uk buzzard on watch

ths uk buzzard has built a nest near a path which is very popular for walkers for at least 3 years,each time a walker walks by
the parents dive bomb them,the youngsters(3) have now left the nest and are very large birds flying on their own nearby,i walked by last
week just before nightfall and spotted the adult on its usual watch perch and thought it wouldn,t spot me,i was wrong within minutes i had a
large black shadow screaming above me

I assume it's the blob on the top of the tree, time for a longer lens, nice sky though