About 300 goslings and 2,500 ducklings hatch annually. Ducklings and goslings are also culled in the production of foie gras. The refuge produces about 9,000 ducklings and 150 to 200 goslings each year. The forest produces about 9,000 ducklings and 150 to 200 goslings each year. Like all geese, the goslings are not fed by the adults. Young birds before fledging are called goslings. Later, the goose's goslings hatch. Goslings (i.e. young shortly after hatching) are grayish-white colored; unlike adults, their bill is black. Other secondary prey species include vlei rats, yellow-spotted brush-furred rats, and occasionally goslings and eggs. When the eggs hatch, she is allowed to keep the goslings as pets. Goslings chirp or whistle lightly, and adults hiss if threatened or angered. Other famous Aldermen include scions of the Childs, Hoares and Goslings banking families. Legs will begin as olive gray on goslings and turn deep red as they mature. "The Story of the Seven Young Goslings" by Laurence Housman (1899). Salinity plays a role in the growth and development of goslings.