Menu

Change Region

Change Region

Helgoland Düne--Nordstrand

Directions Map

Explore...

Bird List

Updated ~6 seconds ago
139 All Years 35 This Year 2024 0 This Month Jun 2024
Last Observed First Observed High Count

Custom Time Period

Change Time Period

Sort by

  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (139)

  1. Eurasian Oystercatcher Haematopus ostralegus
    # Count: 10
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  2. Common Sandpiper Actitis hypoleucos
    # Count: 3
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  3. Whimbrel Numenius phaeopus
    # Count: 1
    Date:
    Observer: Leo Wilhelm
    Location: Helgoland Düne--Nordstrand
  4. Lesser Black-backed Gull Larus fuscus
    # Count: 400
    Date:
    Observer: Leo Wilhelm
    Location: Helgoland Düne--Nordstrand
  5. Common Tern Sterna hirundo
    # Count: 30
    Date:
    Observer: Leo Wilhelm
    Location: Helgoland Düne--Nordstrand
  6. Common Cuckoo Cuculus canorus
    # Count: 1
    Date:
    Observer: Leo Wilhelm
    Location: Helgoland Düne--Nordstrand
  7. Lesser Whitethroat Curruca curruca
    # Count: 1
    Date:
    Observer: Leo Wilhelm
    Location: Helgoland Düne--Nordstrand
  8. Fieldfare Turdus pilaris
    # Count: 5
    Date:
    Observer: Leo Damrow
    Location: Helgoland Düne--Nordstrand
  9. Common Chaffinch Fringilla coelebs
    # Count: 40
    Date:
    Observer: Leo Damrow
    Location: Helgoland Düne--Nordstrand
  10. Eurasian Wigeon Mareca penelope
    # Count: 4
    Date:
    Observer: Leo Damrow
    Location: Helgoland Düne--Nordstrand
  11. European Starling Sturnus vulgaris
    # Count: 300
    Date:
    Observer: Leo Damrow
    Location: Helgoland Düne--Nordstrand
  12. Red-necked Grebe Podiceps grisegena
    # Count: 1
    Date:
    Observer: Benjamin Dignal
    Location: Helgoland Düne--Nordstrand
  13. Horned Lark Eremophila alpestris
    # Count: 20
    Date:
    Observer: Benjamin Dignal
    Location: Helgoland Düne--Nordstrand
  14. Mistle Thrush Turdus viscivorus
    # Count: 3
    Date:
    Observer: Benjamin Dignal
    Location: Helgoland Düne--Nordstrand
  15. Redwing Turdus iliacus
    # Count: 10
    Date:
    Observer: Benjamin Dignal
    Location: Helgoland Düne--Nordstrand
  16. Rock Pipit Anthus petrosus
    # Count: 10
    Date:
    Observer: Benjamin Dignal
    Location: Helgoland Düne--Nordstrand
  17. Little Bunting Emberiza pusilla
    # Count: 1
    Date:
    Observer: Benjamin Dignal
    Location: Helgoland Düne--Nordstrand
  18. Mallard Anas platyrhynchos
    # Count: 16
    Date:
    Observer: Antonio Duarte
    Location: Helgoland Düne--Nordstrand
  19. Black Guillemot Cepphus grylle
    # Count: 2
    Date:
    Observer: Antonio Duarte
    Location: Helgoland Düne--Nordstrand
  20. White-tailed Eagle Haliaeetus albicilla
    # Count: 1
    Date:
    Observer: Antonio Duarte
    Location: Helgoland Düne--Nordstrand
  21. Eurasian Blue Tit Cyanistes caeruleus
    # Count: 1
    Date:
    Observer: Antonio Duarte
    Location: Helgoland Düne--Nordstrand
  22. Common Chiffchaff Phylloscopus collybita
    # Count: 3
    Date:
    Observer: Antonio Duarte
    Location: Helgoland Düne--Nordstrand
  23. Eurasian Blackcap Sylvia atricapilla
    # Count: 4
    Date:
    Observer: Antonio Duarte
    Location: Helgoland Düne--Nordstrand
  24. Goldcrest Regulus regulus
    # Count: 2
    Date:
    Observer: Antonio Duarte
    Location: Helgoland Düne--Nordstrand
  25. Eurasian Wren Troglodytes troglodytes
    # Count: 2
    Date:
    Observer: Antonio Duarte
    Location: Helgoland Düne--Nordstrand
  26. European Robin Erithacus rubecula
    # Count: 3
    Date:
    Observer: Antonio Duarte
    Location: Helgoland Düne--Nordstrand
  27. Black Redstart Phoenicurus ochruros
    # Count: 1
    Date:
    Observer: Antonio Duarte
    Location: Helgoland Düne--Nordstrand
  28. Common Redpoll Acanthis flammea
    # Count: 2
    Date:
    Observer: Antonio Duarte
    Location: Helgoland Düne--Nordstrand
  29. Dunlin Calidris alpina
    # Count: 150
    Date:
    Observer: Jonathan Reher
    Location: Helgoland Düne--Nordstrand
  30. Greater Short-toed Lark Calandrella brachydactyla
    # Count: 1
    Date:
    Observer: Tobias Dombrowski
    Location: Helgoland Düne--Nordstrand
  31. Long-tailed Jaeger Stercorarius longicaudus
    # Count: 1
    Date:
    Observer: Nicolas Rocca
    Location: Helgoland Düne--Nordstrand
  32. Black-bellied Plover Pluvialis squatarola
    # Count: 10
    Date:
    Observer: Philipp Böddeker
    Location: Helgoland Düne--Nordstrand
  33. European Golden-Plover Pluvialis apricaria
    # Count: 40
    Date:
    Observer: Philipp Böddeker
    Location: Helgoland Düne--Nordstrand
  34. Common Ringed Plover Charadrius hiaticula
    # Count: 122
    Date:
    Observer: Philipp Böddeker
    Location: Helgoland Düne--Nordstrand
  35. Bar-tailed Godwit Limosa lapponica
    # Count: 22
    Date:
    Observer: Philipp Böddeker
    Location: Helgoland Düne--Nordstrand
  36. Curlew Sandpiper Calidris ferruginea
    # Count: 1
    Date:
    Observer: Philipp Böddeker
    Location: Helgoland Düne--Nordstrand
  37. Black-headed Gull Chroicocephalus ridibundus
    # Count: 50
    Date:
    Observer: Philipp Böddeker
    Location: Helgoland Düne--Nordstrand
  38. Barn Swallow Hirundo rustica
    # Count: 12
    Date:
    Observer: Philipp Böddeker
    Location: Helgoland Düne--Nordstrand
  39. Northern Wheatear Oenanthe oenanthe
    # Count: 25
    Date:
    Observer: Philipp Böddeker
    Location: Helgoland Düne--Nordstrand
  40. Ruddy Turnstone Arenaria interpres
    # Count: 120
    Date:
    Observer: Alissa Kazi
    Location: Helgoland Düne--Nordstrand
  41. Sanderling Calidris alba
    # Count: 100
    Date:
    Observer: Alissa Kazi
    Location: Helgoland Düne--Nordstrand
  42. Common Redshank Tringa totanus
    # Count: 1
    Date:
    Observer: Klaas Heeres
    Location: Helgoland Düne--Nordstrand
  43. Razorbill Alca torda
    # Count: 5
    Date:
    Observer: Klaas Heeres
    Location: Helgoland Düne--Nordstrand
  44. Little Stint Calidris minuta
    # Count: 1
    Date:
    Observer: Marvin Rieck
    Location: Helgoland Düne--Nordstrand
  45. Eurasian Sparrowhawk Accipiter nisus
    # Count: 2
    Date:
    Observer: Marvin Rieck
    Location: Helgoland Düne--Nordstrand
  46. Eurasian Curlew Numenius arquata
    # Count: 1
    Date:
    Observer: Jonathan Reher
    Location: Helgoland Düne--Nordstrand
  47. Caspian Gull Larus cachinnans
    # Count: 1
    Date:
    Observer: Alissa Kazi
    Location: Helgoland Düne--Nordstrand
  48. Rook Corvus frugilegus
    # Count: 2
    Date:
    Observer: Jakob Demmer
    Location: Helgoland Düne--Nordstrand
  49. Eurasian Magpie Pica pica
    # Count: 8
    Date:
    Observer: Dario Allenstein
    Location: Helgoland Düne--Nordstrand
  50. Eurasian Jackdaw Corvus monedula
    # Count: 30
    Date:
    Observer: Dario Allenstein
    Location: Helgoland Düne--Nordstrand
  51. Eurasian Skylark Alauda arvensis
    # Count: 13
    Date:
    Observer: Dario Allenstein
    Location: Helgoland Düne--Nordstrand
  52. Twite Linaria flavirostris
    # Count: 1
    Date:
    Observer: Lukas Sobotta
    Location: Helgoland Düne--Nordstrand
  53. Pallid Swift Apus pallidus
    # Count: 1
    Date:
    Observer: Dario Allenstein
    Location: Helgoland Düne--Nordstrand
  54. Purple Sandpiper Calidris maritima
    # Count: 90
    Date:
    Observer: Dario Allenstein
    Location: Helgoland Düne--Nordstrand
  55. Herring Gull Larus argentatus
    # Count: 50
    Date:
    Observer: Dario Allenstein
    Location: Helgoland Düne--Nordstrand
  56. House Sparrow Passer domesticus
    # Count: 5
    Date:
    Observer: Dario Allenstein
    Location: Helgoland Düne--Nordstrand
  57. Lapland Longspur Calcarius lapponicus
    # Count: 2
    Date:
    Observer: Dario Allenstein
    Location: Helgoland Düne--Nordstrand
  58. Eurasian Moorhen Gallinula chloropus
    # Count: 3
    Date:
    Observer: Tony Rinaud
    Location: Helgoland Düne--Nordstrand
  59. Jack Snipe Lymnocryptes minimus
    # Count: 1
    Date:
    Observer: Matthias Weid
    Location: Helgoland Düne--Nordstrand
  60. Carrion Crow Corvus corone
    # Count: 40
    Date:
    Observer: Hugo Schlenker
    Location: Helgoland Düne--Nordstrand
  61. Red-breasted Merganser Mergus serrator
    # Count: 2
    Date:
    Observer: Till Kuhlen
    Location: Helgoland Düne--Nordstrand
  62. Eurasian Kestrel Falco tinnunculus
    # Count: 2
    Date:
    Observer: Florian Klingel
    Location: Helgoland Düne--Nordstrand
  63. Eurasian Blackbird Turdus merula
    # Count: 15
    Date:
    Observer: Florian Klingel
    Location: Helgoland Düne--Nordstrand
  64. Sabine's Gull Xema sabini
    # Count: 1
    Date:
    Observer: Jörg Hanoldt
    Location: Helgoland Düne--Nordstrand
  65. Brant Branta bernicla
    # Count: 45
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  66. Canada Goose Branta canadensis
    # Count: 3
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  67. Northern Lapwing Vanellus vanellus
    # Count: 2
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  68. Common Gull Larus canus
    # Count: 85
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  69. Gray Wagtail Motacilla cinerea
    # Count: 2
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  70. Eurasian Linnet Linaria cannabina
    # Count: 17
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  71. Mediterranean Gull Ichthyaetus melanocephalus
    # Count: 8
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  72. Dunnock Prunella modularis
    # Count: 1
    Date:
    Observer: Carsten Sekula
    Location: Helgoland Düne--Nordstrand
  73. Common Murre Uria aalge
    # Count: 10
    Date:
    Observer: Rafael Szamocki
    Location: Helgoland Düne--Nordstrand
  74. Northern Gannet Morus bassanus
    # Count: 20
    Date:
    Observer: Rafael Szamocki
    Location: Helgoland Düne--Nordstrand
  75. Willow Warbler Phylloscopus trochilus
    # Count: 1
    Date:
    Observer: Rafael Szamocki
    Location: Helgoland Düne--Nordstrand
  76. Arctic Tern Sterna paradisaea
    # Count: 1
    Date:
    Observer: Joerg Sto
    Location: Helgoland Düne--Nordstrand
  77. Black-browed Albatross Thalassarche melanophris
    # Count: 1
    Date:
    Observer: Lukas Sobotta
    Location: Helgoland Düne--Nordstrand
  78. Snow Bunting Plectrophenax nivalis
    # Count: 20
    Date:
    Observer: Dario Allenstein
    Location: Helgoland Düne--Nordstrand
  79. Arctic Loon Gavia arctica
    # Count: 1
    Date:
    Observer: Daniel Schmäing
    Location: Helgoland Düne--Nordstrand
  80. European Stonechat Saxicola rubicola
    # Count: 3
    Date:
    Observer: Daniel Schmäing
    Location: Helgoland Düne--Nordstrand
  81. Eurasian Siskin Spinus spinus
    # Count: X
    Date:
    Observer: Daniel Schmäing
    Location: Helgoland Düne--Nordstrand
  82. Common Wood-Pigeon Columba palumbus
    # Count: 80
    Date:
    Observer: Jannis Leistikow
    Location: Helgoland Düne--Nordstrand
  83. Little Gull Hydrocoloeus minutus
    # Count: 20
    Date:
    Observer: Wilma Wehmeyer
    Location: Helgoland Düne--Nordstrand
  84. Red Phalarope Phalaropus fulicarius
    # Count: 1
    Date:
    Observer: Tim Schmölzer
    Location: Helgoland Düne--Nordstrand
  85. Gray Heron Ardea cinerea
    # Count: 2
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  86. Red-breasted Flycatcher Ficedula parva
    # Count: 1
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  87. Yellow-legged Gull Larus michahellis
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Helgoland Düne--Nordstrand
  88. Common Firecrest Regulus ignicapilla
    # Count: 1
    Date:
    Observer: Dario Allenstein
    Location: Helgoland Düne--Nordstrand
  89. Long-tailed Duck Clangula hyemalis
    # Count: 1
    Date:
    Observer: Dario Allenstein
    Location: Helgoland Düne--Nordstrand
  90. Wood Lark Lullula arborea
    # Count: 1
    Date:
    Observer: Daniel Ochterbeck
    Location: Helgoland Düne--Nordstrand
  91. Common Redstart Phoenicurus phoenicurus
    # Count: 1
    Date:
    Observer: Evgeniy Popov
    Location: Helgoland Düne--Nordstrand
  92. Common Shelduck Tadorna tadorna
    # Count: 8
    Date:
    Observer: Christian Engel
    Location: Helgoland Düne--Nordstrand
  93. Olive-backed Pipit Anthus hodgsoni
    # Count: 1
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  94. Stock Dove Columba oenas
    # Count: 1
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  95. Hooded Crow Corvus cornix
    # Count: 8
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  96. Song Thrush Turdus philomelos
    # Count: 8
    Date:
    Observer: Anja von Heydebreck
    Location: Helgoland Düne--Nordstrand
  97. Barnacle Goose Branta leucopsis
    # Count: 50
    Date:
    Observer: Coleta Holzhäuser
    Location: Helgoland Düne--Nordstrand
  98. Green-winged Teal Anas crecca
    # Count: 3
    Date:
    Observer: Núria Ferrer Barbany
    Location: Helgoland Düne--Nordstrand
  99. Hen Harrier Circus cyaneus
    # Count: 2
    Date:
    Observer: Núria Ferrer Barbany
    Location: Helgoland Düne--Nordstrand
  100. Graylag Goose Anser anser
    # Count: 32
    Date:
    Observer: Volker Hesse
    Location: Helgoland Düne--Nordstrand
  101. Black Kite Milvus migrans
    # Count: 1
    Date:
    Observer: Zdenek Machacek
    Location: Helgoland Düne--Nordstrand
  102. Common Goldeneye Bucephala clangula
    # Count: 1
    Date:
    Observer: Jannis Leistikow
    Location: Helgoland Düne--Nordstrand
  103. Red-throated Pipit Anthus cervinus
    # Count: 1
    Date:
    Observer: Lukas Sobotta
    Location: Helgoland Düne--Nordstrand
  104. Great Black-backed Gull Larus marinus
    # Count: 30
    Date:
    Observer: Friedemann Arndt
    Location: Helgoland Düne--Nordstrand
  105. Yellow-browed Warbler Phylloscopus inornatus
    # Count: 1
    Date:
    Observer: Friedemann Arndt
    Location: Helgoland Düne--Nordstrand
  106. Common Eider Somateria mollissima
    # Count: 50
    Date:
    Observer: Friedemann Arndt
    Location: Helgoland Düne--Nordstrand
  107. Water Rail Rallus aquaticus
    # Count: 3
    Date:
    Observer: Friedemann Arndt
    Location: Helgoland Düne--Nordstrand
  108. Great Cormorant Phalacrocorax carbo
    # Count: 207
    Date:
    Observer: Friedemann Arndt
    Location: Helgoland Düne--Nordstrand
  109. White Wagtail Motacilla alba
    # Count: 26
    Date:
    Observer: Friedemann Arndt
    Location: Helgoland Düne--Nordstrand
  110. Meadow Pipit Anthus pratensis
    # Count: 56
    Date:
    Observer: Friedemann Arndt
    Location: Helgoland Düne--Nordstrand
  111. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Jannis Leistikow
    Location: Helgoland Düne--Nordstrand
  112. Western Yellow Wagtail Motacilla flava
    # Count: 10
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  113. Common Merganser Mergus merganser
    # Count: 4
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  114. Pink-footed Goose Anser brachyrhynchus
    # Count: 6
    Date:
    Observer: Holger Teichmann
    Location: Helgoland Düne--Nordstrand
  115. Tundra Swan Cygnus columbianus
    # Count: 1
    Date:
    Observer: Benjamin Knes
    Location: Helgoland Düne--Nordstrand
  116. Little Grebe Tachybaptus ruficollis
    # Count: 1
    Date:
    Observer: Benjamin Knes
    Location: Helgoland Düne--Nordstrand
  117. Common Snipe Gallinago gallinago
    # Count: 2
    Date:
    Observer: Benjamin Knes
    Location: Helgoland Düne--Nordstrand
  118. Desert Wheatear Oenanthe deserti
    # Count: 1
    Date:
    Observer: Götz Ellwanger
    Location: Helgoland Düne--Nordstrand
  119. Black-legged Kittiwake Rissa tridactyla
    # Count: 10
    Date:
    Observer: Volker Heinrich
    Location: Helgoland Düne--Nordstrand
  120. Reed Bunting Emberiza schoeniclus
    # Count: 4
    Date:
    Observer: Volker Heinrich
    Location: Helgoland Düne--Nordstrand
  121. Brambling Fringilla montifringilla
    # Count: 40
    Date:
    Observer: Volker Heinrich
    Location: Helgoland Düne--Nordstrand
  122. Greater White-fronted Goose Anser albifrons
    # Count: 5
    Date:
    Observer: Holger Teichmann
    Location: Helgoland Düne--Nordstrand
  123. Red-throated Loon Gavia stellata
    # Count: 8
    Date:
    Observer: Mathieu Franzkeit
    Location: Helgoland Düne--Nordstrand
  124. Parasitic Jaeger Stercorarius parasiticus
    # Count: 3
    Date:
    Observer: Christoph Moning
    Location: Helgoland Düne--Nordstrand
  125. Red Knot Calidris canutus
    # Count: 20
    Date:
    Observer: Christoph Moning
    Location: Helgoland Düne--Nordstrand
  126. Merlin Falco columbarius
    # Count: 3
    Date:
    Observer: Silvio Paul
    Location: Helgoland Düne--Nordstrand
  127. Iceland Gull Larus glaucoides
    # Count: 1
    Date:
    Observer: Silvio Paul
    Location: Helgoland Düne--Nordstrand
  128. Eurasian Woodcock Scolopax rusticola
    # Count: 1
    Date:
    Observer: Tomasz Kulakowski
    Location: Helgoland Düne--Nordstrand
  129. Short-eared Owl Asio flammeus
    # Count: 2
    Date:
    Observer: Tomasz Kulakowski
    Location: Helgoland Düne--Nordstrand
  130. Bearded Reedling Panurus biarmicus
    # Count: 1
    Date:
    Observer: Tomasz Kulakowski
    Location: Helgoland Düne--Nordstrand
  131. European Greenfinch Chloris chloris
    # Count: 20
    Date:
    Observer: Tomasz Kulakowski
    Location: Helgoland Düne--Nordstrand
  132. Northern Fulmar Fulmarus glacialis
    # Count: 2
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  133. Common Greenshank Tringa nebularia
    # Count: 2
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  134. Ruff Calidris pugnax
    # Count: 2
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  135. Pomarine Jaeger Stercorarius pomarinus
    # Count: 2
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  136. Sandwich Tern Thalasseus sandvicensis
    # Count: 200
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  137. Common Scoter Melanitta nigra
    # Count: 15
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  138. Tufted Duck Aythya fuligula
    # Count: X
    Date:
    Observer: Christoph Randler
    Location: Helgoland Düne--Nordstrand
  139. European Shag Gulosus aristotelis
    # Count: 1
    Date:
    Observer: Christoph Randler
    Location: Helgoland Düne--Nordstrand

Hybrids (1)

  1. Carrion x Hooded Crow (hybrid) Corvus corone x cornix
    # Count: 7
    Date:
    Observer: Dario Allenstein
    Location: Helgoland Düne--Nordstrand

Additional Taxa (9)

  1. gull sp. Larinae sp.
    # Count: 10
    Date:
    Observer: Leo Wilhelm
    Location: Helgoland Düne--Nordstrand
  2. swan sp. Cygnus sp.
    # Count: 8
    Date:
    Observer: Leo Wilhelm
    Location: Helgoland Düne--Nordstrand
  3. Caspian/Yellow-legged Gull Larus cachinnans/michahellis
    # Count: 1
    Date:
    Observer: Leo Damrow
    Location: Helgoland Düne--Nordstrand
  4. passerine sp. Passeriformes sp.
    # Count: 3
    Date:
    Observer: Alissa Kazi
    Location: Helgoland Düne--Nordstrand
  5. large alcid sp. Alca/Uria sp.
    # Count: 1
    Date:
    Observer: Dario Allenstein
    Location: Helgoland Düne--Nordstrand
  6. Anser sp. Anser sp.
    # Count: 1
    Date:
    Observer: Florian Klingel
    Location: Helgoland Düne--Nordstrand
  7. Larus sp. Larus sp.
    # Count: 40
    Date:
    Observer: Leo Wilhelm
    Location: Helgoland Düne--Nordstrand
  8. Common/Arctic Tern Sterna hirundo/paradisaea
    # Count: 3
    Date:
    Observer: Markus Deutsch
    Location: Helgoland Düne--Nordstrand
  9. Carrion/Hooded Crow Corvus corone/cornix
    # Count: 12
    Date:
    Observer: Anja von Heydebreck
    Location: Helgoland Düne--Nordstrand