Branta canadensis
Big webbed triangles all over the lawn, usually with company.
3.5–4.5 in long. Three forward toes fully webbed. Larger than any duck print. Alternating waddling trail. Grazed grass and droppings nearby.
Lawns, ponds, golf courses, farm fields, marshes. Across North America and introduced in Europe.
Diurnal
Grass, grain, aquatic plants
Geese mate for life and remember migration routes learned from their parents.
Should I be concerned?
Nesting geese will chase. Back away and give the nest a wide loop.