The reserve was deserted when I arrived at 9am.
Weeds and undergrowth have grown up in front of the hides, so it's difficult to see anything, but a Bittern came out of the reedbed in front of the main hide and walked over the grassy area to the wetter area to the left.
A thrilling thing to see, never seen a Bittern in the open on the ground before!

Also seen during my 2 hour visit were Marsh Harriers, Kestrels, Sparrowhawk, Kingfishers, Little Grebe and chicks, Shoveler and Reed and Sedge Warblers, which were unusually quite confiding in front of my camera!
Cuckoo was heard.

Pics on my blog!

Great shots! Is it the first Bittern to be photographed at Greylake?

No James, a couple of years ago Nick Stacey photographed one from the hide that was even closer! I think a couple of people have photographed one in flight there this year too, but pics of Bittern at Greylake are few and far between!

To add a bit more information to this topic. I took 6 pictures of a bittern in reeds and taking flight. The pictures were taken on 29 June 2014, the bittern was in the reeds on the right of the pond in front of the main hide at Greylake.