Barnacle goose were of the same nature as other birds. The question of the nature of barnacle geese also came up as a matter of Jewish dietary law in the Halakha, and Rabbeinu Tam (1100–71) determined that they were kosher (even if born of trees) and should be slaughtered following the normal prescriptions for birds. The mythical barnacle tree, believed in the Middle Ages to have barnacles that opened to reveal geese, may have a similar origin to the other legends already mentioned. Barnacle goose The barnacle goose ("Branta leucopsis") belongs to the genus "Branta" of black geese, which contains species with
Goose Goose Geese are waterfowl of the family Anatidae. This group comprises the genera "Anser" (the grey geese) and "Branta" (the black geese)." Chen", a genus comprising 'white geese', is sometimes used to refer to a group of species that are more commonly placed within "Anser". Some other birds, mostly related to the shelducks, have "goose" as part of their names. More distantly related members of the family Anatidae are swans, most of which are larger than true geese, and ducks, which are smaller. The word "goose" is a direct descendent of Proto-Indo-European root, "ghans-". In Germanic languages, the root gave