PublicDomainPictures.net and StockFreeImages offer a variety of stock photographs for people to use for free, including photos of ducks. Both of these websites allow the user to choose an image, file size and download directly from the site.
In addition to free photos, StockFreeImages provides premium photographs for a small fee, but there are plenty of free duck photos. This website includes traditional photographs of ducks, rubber duckies, cartoon ducks and food dishes with duck as one of its ingredients.
From rubber ducks to ducks in their natural habitat, PublicDomainPictures.net offers a variety of free stock pictures of the waterfowl. This includes photos of ducks by themselves or in groups, and mature ducks as well as chicks.