Ducks live in a wide variety of wetland habitats including lakes, rivers, ponds, marshes, and coastal areas around the world.
Ducks generally have relatively short to medium-length necks compared to geese or swans, with dabbling ducks like the mallard and teal featuring compact, sturdy necks suited for surface feeding, while some species such as the northern pintail possess noticeably longer and more slender necks that give them an elegant profile.
| Duck type | Neck profile |
| Mallard | short and thick |
| Common Teal | Very short, slim |
Ducks are omnivores that mainly eat aquatic plants, seeds, insects, small fish, snails, and crustaceans.
Geese primarily live in wetlands, lakes, rivers, marshes, and grassy fields near water, where they graze on grass, aquatic plants, grains, and seeds.
Geese have noticeably longer necks than ducks.
| Goose type | Neck profile |
| Canada Goose | Long and thick |
| Greylag Goose | robust, often held in a gentle S-curve |