Goose Barnacles These fascinating creatures are filter feeders that typically attach themselves to hard surfaces, especially flotsam (as shown in the pictures). In the past, when the concept of bird migration was not fully understood, people believed that Barnacle Geese actually evolved from these crustaceans through a process of spontaneous generation. This misunderstanding arose because the geese were never observed nesting in Europe, leading to the name "Goose Barnacles." Also, due to their f