T rue Geese belong to the sub family Anserinae. They are colored in blacks, whites, greys, and browns. The sexes are very similar in appearance.
True geese are mainly terrestrial in their feeding habits and have strong bills adapted for grazing.
They tend to mate for life and both sexes care for the goslings. This name is not really accurate when the North American geese are considered. In fact the Ansers also include white and brown geese. A better way of establishing parameters for the group might be that they have a uniform plumage coloring of the three colors recognized above. In addition their bills and legs are pink, orange, or yellow.