Margrethe Kog

Sønderjylland  >  Denmark

One of the best spots in Denmark for wading birds and geese.

Added* by Maria Petersen
Most recent update 7 January 2023


Margrethe Kog is a very flat area and mostly very windy as well. But there are thousands of birds, particularly Barnacle Goose are usually there in large numbers. Margrethe Kog was made in 1982 when a higher dike was needed further out in the marsh. One third of the kog consists of Saltvandssøen, a saltwater lake, that gets fresh saltwater pumped in to maintain salinity. There is a project underway on the eastern side of the kog to improve breeding sites for meadow birds. Among the birds you can encounter here are Northern Pintail, Eurasian Curlew, Avocet, Common Redshank, Dunlin, Ruff, Northern Lapwing, Eurasian Oystercatcher and Spoonbill. Best month to see the most species of waders is July.



You can park on the south side of the area. Click on the P in the map to get directions. A good overview of routes and facilities can be found at https://toendermarsken.dk/marskstien/kort/ (see clickable link below). Remember to bring your passport if you want to cross the border and walk between Margrethe Kog and Rickelsbüller koog.

Terrain and Habitat

Mud flats


Flat , No shadow , Open landscape

Circular trail


Is a telescope useful?

Can be useful

Good birding season

All year round

Best time to visit

Winter , Spring , Summer , Autumn , Spring migration , Autumn migration


Paved road , Wide path

Difficulty walking trail


Accessible by


Birdwatching hide / platform


Extra info

Some parts of the route are accessible by car if you don't fancy the long walk (about 18 km).


View other birding spots in the area that are published on Birdingplaces


Top 5 birds

Other birds you can see here

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Comments & Tips

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