An adult Ross's goose has taken up residense in my back yard. This is
its second year here. The adults become all white, similar in
appearence to the Snow Goose but smaller. This Ross's goose must be a
male as it has joined a mated pair of Canada Geese and is guarding
their babies:
https://postimg.cc/QV65S8Ly
https://www.audubon.org/field-guide/bird/rosss-goose