The site is unusual in that it shows greater ecological similarities to the dune systems of the Baltic - which support acidic plant communities - rather than the dunes on the North Norfolk Coast - where the sand is calcareous.
Natterjack Toads breed in shallow pools within the site. The site, along with the adjoining Horsey Dunes, hosts the largest colonies of Dark Green Fritillary and Grayling butterflies in Norfolk. Other butterflies recorded from here in numbers include Small Copper and Common Blue.
The ponds among the dunes are home to many dragonflies including the Common Hawker - which is rare in Norfolk.
Winterton Dunes is also known as the first site in Britain where the Southern Emerald Damselfly occurred (Nobes 2003).
- BBC Norfolk news report Retrieved 4 July 2014
- Nobes, Geoff (2003) Southern Emerald Damselfly Lestes barbarus (Fabr.) - The First British Record Atropos No. 18 pp. 3–6
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