The project is described as “Conservation for the 21st century, on a scale never before attempted in the UK!” This video explains what’s there.
The RSPB website has a new comment from a satisfied visitor:
I visited Wallasea for the first time today. I cannot get over the numbers of corn buntings. Flocks of well over 100 in more than one area, smaller groups numerous, there must have been well over 300 visible along the road and sea wall, with many in full jangle song. Simply wonderful. 3 short eared owls, at least 4 marsh harriers, half a dozen or more kestrels, over 1,000 brent geese and the constant backdrop of skylarks more than made up for failing to find hen harriers or a rough legged buzzard (a common variety was over the other side of the Crouch). What a great area, I can’t wait to see how the RSPB develops it.