While a handful of geese and swans species live and breed in Scotland, the majority arrive in the country to spend the winter.
We may think it gets cold during this period but it's mild compared to the icy tundra of Siberia, Iceland, Greenland and Scandinavia, where they arrive in flocks from October onwards.
A trip to Scottish estuaries during this time can result in sightings of several different species, while there are a few you're likely to see during a walk in your local park.
Here are all 11 types and how to see them.
5. Greylag Goose
Most domestic geese are descended from the greylag goose, which are resident in gravel pits, lochs and reservoirs across much of Scotland. Many of these are semi-domesticated, but the overwintering population in central and eastern Scotland are genuine wild birds. | Canva/Getty Images
6. Mute Swan
Large birds with an orange beak with a black base, the mute swan can be found in much of Scotland with the exception of the far north. They tend to be seen in lochs, lakes and slow-moving rivers. | Canva/Getty Images
7. Pink-footed Goose
As well as the pink feet suggested by its name, the pink-footed goose also has pink legs and a pink beak. They are winder visitors which can found in coastal areas of Scotland and in the central belt. They are most at home in the estuaries of eastern Scotland. | Canva/Getty Images
8. Taiga Bean Goose
The taiga bean goose is a rare sight in Scotland, although a flock regularly overwinters near Flakirk. Otherwise you might catch a glimpse of them resting in a few areas of eastern Scotland on their migatory journey from Siberia and Scandanavia to Western Europe, including on the Fife side of the Firth of Forth. | Canva/Getty Images