Occasional visitor and feral resident.

Domesticated Greylag Geese were formerly kept at farms in Stevenage for both food and their “guard dog” qualities. 

Birds of possible wild origin are occasionally seen at Fairlands Valley Lakes. The earliest record from there is from November 1983 and, the seven seen from 27 to 29 May 2024 are the highest number of birds seen together there.

Single birds are also occasionally seen at the Town Centre Gardens, with five seen there on 5 July 2018.

Four were seen flying over Norton Green Tip on 5 April 2016 and, two were seen feeding among c.200 Canada Geese (Branta canadensis) at Astonbury Farm on 16 November 2022.