In flight they are recognizable by their silhouette, their flight pattern and their loud sound. Their long necks protrude noticeably ahead of them in flight. Their tapered wings flap constantly and slightly asynchronously and they chatter and honk as they pass overhead. The rich local wetlands attract dozens of beautiful species of waterfowl. The protection of the tall marsh grasses and the rich bay waters, carried in with each tide, provide the perfect combination of food and shelter.
Numerous waterbirds are common sights year-round on the bay.
But winter brings an exceptional variety and palette. As the northern climates freeze with the onset of winter, millions of birds fly south to over-wintering territories where the weather is milder and food is more persistent. The Bay Area is, for birds and people alike, a perfect place to spend the winter. Historically, the bay has been a haven for migrating ducks, geese and other waterbirds. Two hundred years ago, abundant flocks would darken the sky and their simultaneous takeoff made a thunderous roar.