A Skylark was singing too and later a Willow Warbler.
Suddenly a flock of starlings took off from the fields opposite the entrance of the reserve, and the crows too. Then I heard the rattling call of crows and I saw two mobbing what it appeared to be a kestrel flying straight through, however, its tail and wings were very pointy and the forewing appeared curved, a cuckoo?! I heard no calls though and the crows let it go and it disappeared into the distance.
I finished of with a walk around the lake. There were several greylag families and a few mallards. As I passed by a cleared out area in the shore, a dark, round thing plopped into the water just by me. I stayed still, and a few seconds later a water vole emerged taking little notice of me. It cut leaves of the marginal vegetation and took them away, presumably to eat. As I was taking the water vole photos, I heard a Reed Warbler singing, my first of the year, and later, I even managed to capture a shot. A total of 33 birds species (not counting the possible cuckoo).
Lesser Whitethroat, singing exposed
Whitethroat
Sedge Warbler
Reed Bunting
And another whitethroat
Gosling
Greylag family
Water vole, taking away some leaf fragments.
Reed Warbler