They are really beautiful birds. But I dont see a nest there. Their nests are much bigger, nearly 6 ft in diameter. Also its too late in the year for them to have a nest, they do that in spring. Except in regions where its always warm, there they nest as early as Dec / Jan.
Did you see any eagles of the same size, that were all dark brown or black? They are their youngsters. It takes 4-5 years before they get the white hood and the orange beak.