Duck vs goose, everyone knows the difference between a duck and a goose, but there are some subtle distinctions between the two that you might not have noticed. Despite sharing a common ancestor in the Anatidae family of waterfowl, geese and swans lead very different lives, particularly as they age.
This article will discuss the key distinctions between ducks and geese and provide some helpful hints for spotting the two species apart. We’ll also discuss what these birds eat and how they pair off. Now is the time to begin.
You may also want to read about Indian Runner ducks.
Duck vs Goose, How they look
One more way in which ducks and geese differ from one another is in how they look. Ducks are typically much larger than geese, and their feathers are much more vibrantly colored. While the exact hues and patterns on a duck’s feathers will always depend on its breed, most ducks, and particularly male ducks, sport eye-catching colors and designs. Colors and patterns on geese are typically more subdued.
Because of the differences in their diets, ducks also have wider and longer bills than geese. While similar in strength to duck bills, goose bills are typically much shorter.
Duck vs Goose, Eating
Different varieties of ducks and geese have slightly varying diets, but this does depend on the breed. In contrast to ducks, which are omnivores, geese eat mostly vegetation. Ducks, on the other hand, eat a wide variety of fish and crustaceans, whereas geese primarily consume plant matter both in and out of the water.

Duck vs Goose, Lifespan
The lifespan of a duck or goose is another major distinction between the two. The average lifespan of a goose is between 8 and 12 years, while that of a duck is between 3 and 8 years. Because captive waterfowl typically live longer than their wild counterparts, this statistic only applies to wild ducks and geese.
In comparison to geese, ducks are much smaller and less aggressive, which likely results in a significantly shorter lifespan. Predators and the young ducks’ inability to defend themselves kill many of them before their first birthday. When it comes to protecting their young, geese are much more aggressive than ducks.
Duck vs Goose, Breeding Behaviour
The reproductive behaviors of ducks and geese are another point of differentiation between the two. Both of these birds are generally considered monogamous, though this classification is somewhat arbitrary and hinges on their annual breeding cycles. I think it’s time we got into this in more depth.
Geese, for instance, are typically viewed as being completely monogamous, maintaining a single lifelong partnership. Unlike geese, ducks are monogamous for only one breeding season before actively seeking out a new mate for the following year.
Numerous studies point to this monogamy as a possible explanation for the greater aggression displayed by geese during mating season compared to that of ducks. Male geese do not leave all of the parenting to the female. This is a radical deviation from the norm when compared to the vast majority of other animals.
Duck vs Goose, Size
Ducks and geese can be distinguished from one another by a number of key characteristics. When compared to ducks, geese are much longer and heavier overall, and their necks are noticeably longer as well. Ducks, and particularly male ducks, have brighter plumage than geese. Finally, there is a difference between a duck and a goose in terms of diet and lifespan; geese live longer and are herbivores, while ducks are carnivores but have shorter lifespans.
While geese can weigh up to four times as much as the average duck, ducks typically weigh between two and five pounds. Different breeds of ducks and geese can reach lengths of 15 to 20 and 30 to 50 inches, respectively. A duck and goose are very different sizes, and the difference is immediately apparent when compared side by side.