• plural geese
  • Includes ducks and swans
  • medium to large birds
  • always associated with water
  • Most species in Europe, Asia and North America are strongly migratory
  • largely vegetarian diet
  • can become pests when flocks feed on arable crops or inhabit ponds or grassy areas in urban environments
  • usually mate for life, though a small number will "divorce" and remate
  • Not all couples are heterosexual, as both females and males will form long-term same-sex couples