On 8 September 2013, Jan Faber recorded two goslings of an Egyptian Goose Alopochen aegyptiacus guarded by a female domestic Mallard Anas platyrhynchos in the city of Groningen, The Netherlands. There were no duckings. Both goslings were just over one month old. The duck was in wing moult at that time (photo 1, taken on 9 September 2013). Both goslings fledged. They were colour-ringed on 22 November 2013. Both were females, both were already able to fly on that day (wing length 368 mm for both individuals, maximum chord). A few weeks later one of the birds got entangled in a fishing line (photo 2, taken on 12 December 2013). The fishing line was removed and a few months later the bird had fully recovered. Both moulted their primaries in a nearby city park (photos 3-4, both taken on 12 August 2014). RKW3 started with moulting its flight feathers in mid-July, RKW2 started in mid-August. It is unknown what initiated the adoption, though at least two pairs of Egyptian Geese showing territorial behaviour were recorded visiting the site. An unringed pair of Egyptian Goose raised five goslings at this site in the spring of 2014. The domestic Mallard was still present in June 2014. She had no ducklings at that time and she did not seem to interact with the breeding pair of Egyptian Goose. Time will tell if both adopted Egyptian Geese will mate with a Mallard or with another Egyptian Goose.