Glorious day, if a little windswept. Birds of note on the reserve included a Bittern, which appeared to come from Rockland across the river, and flew high onto the reserve and landed somewhere near the railway line, hopefully not on it. A stonechat was seen in the reedbed from the Tower Hide, and loafing on the water here were a few Gulls, Shoveler, Pochard, Teal and Greylag Geese. 4 Snipe were in the long grass. A Marsh Harrier appeared to be nest building, disappearing into the reedbed on 2 occassions with a largish twig. Birds of the day were undoubtedly the Treecreepers. 2 Pairs were vocal: one near the start of the meadow trail, and one near Tower Hide. A lovely song and a sure sign that courtship is underway for some birds, and as we know more will follow. 6+ Siskins were showing well, feeding on the catkins hanging amongst the trees and bushes near the visitor centre. Back to work tomorrow, trying to look on the bright side- perhaps the Grey Wagtail which seems to have overwinte...