Greylag goose the western greylag goose, breeds in Iceland and north and central Europe; "A. a. rubrirostris", the eastern greylag goose, breeds in Romania, Turkey and Russia eastwards to northeastern China. The two subspecies intergrade where their ranges meet. The greylag goose sometimes hybridises with other species of goose including the barnacle goose ("Branta leucopsis") and the Canada goose ("Branta canadensis"), and occasionally with the mute swan ("Cygnus olor"). The greylag goose was one of the first animals to be domesticated; this happened at least 3000 years ago in Ancient Egypt, the domestic breed being known as "A. a. domesticus". As the
Egyptian goose 100 sightings just in 1Q 2018 as reported in ebird.org database. The Egyptian goose is believed to be most closely related to the shelducks (genus "Tadorna") and their relatives, and is placed with them in the subfamily Tadorninae. It is the only extant member of the genus "Alopochen", which also contains closely related prehistoric and recently extinct species. mtDNA cytochrome "b" sequence data suggest that the relationships of "Alopochen" to "Tadorna" need further investigation. The generic name is based on Greek ἀλώπηξ ("alōpēx"), "fox", and χήν ("chēn") "goose", referring to the ruddy colour of its back. The species name "aegyptius"