And we’re the ones who invited them in: Once driven to the brink of extinction, the species was brought back by well-meaning people who released Canada geese throughout the United States. Suburban environments provide a food-rich home for geese, but communities often resort to lethal roundups when their presence (and their droppings) become a nuisance. However, there are humane alternatives to killing.

Like all parents, geese are protective of their offspring. An adult goose who hisses or seems defensive is likely just defending her young. Any human in the area should back away slowly to avoid scaring her even further.

Many populations of Canada geese don’t migrate, instead living year-round in a single location. That’s because flocks released into the U.S. didn’t have parents to teach them how to migrate.

No matter how big or small your outdoor space, you can create a haven for local wildlife. By providing basic needs like water, food and shelter, you can make a difference in your own backyard.