DOBBEN WH VAN (1934) Contribution to the gulls? question. LIMOSA 7 (2): 63-78.

Vlieland control methods European Herring Gull Larus argentatus Common Tern Sterna hirundo Arctic Tern Sterna paradisaea Pied Avocet Recurvirostra avosetta Mallard Anas platyrhynchos Common Shelduck Tadorna tadorna Common Eider Somateria mollissima Northern Lapwing Vanellus vanellus Black-tailed Godwit Limosa limosa Common Redshank Tringa totanus Eurasian Oystercatcher Haematopus ostralegus Ruff Philomachus pugnax Common Gull Larus canus canus Black-headed Gull Chroicocephalus ridibundus = Larus ridibundus Contribution to the gulls? question

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