This was one of the two marsh harriers quartering the reserve when I visited. Both were females. I did not see the booted eagle I saw drifting over the place from a distance yesterday, but these provided a clean substitution. One harrier was very funny as it tried to roost in some reeds but constantly kept squirming and flapping and eventually gave up and flew somewhere else. The entire lake became a cloud as they flew over as the shoveler horde got spooked out.