Berry Fen

{{Short description|Neutral grassland in Earith, England}}

{{Use dmy dates|date=March 2020}}

{{Infobox SSSI

|image= Berry Fen 5.jpg

|image_caption =

|name= Berry Fen

|aos= Cambridgeshire

|interest=Biological

|gridref={{gbmappingsmall| TL 378 745 }}

|area= 15.3 hectares

|notifydate= 1984

|map=[http://magic.defra.gov.uk/MagicMap.aspx?startTopic=Designations&activelayer=sssiIndex&query=HYPERLINK%3D%271000093%27 Magic Map]

}}

Berry Fen is a {{convert|15.3|hectare|acre|adj=on}} biological Site of Special Scientific Interest on the western outskirts of Earith in Cambridgeshire.{{cite web|url=https://designatedsites.naturalengland.org.uk/SiteDetail.aspx?SiteCode=S1000093&SiteName=berry&countyCode=&responsiblePerson= |title=Designated Sites View: Berry Fen | series= Sites of Special Scientific Interest|publisher=Natural England|accessdate = 17 December 2016}}{{cite web|url=http://magic.defra.gov.uk/MagicMap.aspx?startTopic=Designations&activelayer=sssiIndex&query=HYPERLINK%3D%271000093%27 |title=Map of Berry Fen|series= Sites of Special Scientific Interest|publisher=Natural England|accessdate= 17 December 2016}}

This neutral grassland periodically floods in the winter. It is used by wintering wildfowl, including Bewick's swans in nationally numbers, especially when the nearby Ouse Washes flood too deeply. There are wetland herbs such as marsh ragwort and the rare narrow-leaved water-dropwort.{{cite web|url= http://www.sssi.naturalengland.org.uk/citation/citation_photo/1000093.pdf|title= Berry Fen citation|series= Sites of Special Scientific Interest|publisher= Natural England|accessdate= 17 December 2016|url-status= dead|archiveurl= https://web.archive.org/web/20160304072113/http://www.sssi.naturalengland.org.uk/citation/citation_photo/1000093.pdf|archivedate= 4 March 2016}}

The site is private land with no public access.