BOERE GC & ZEGERS PM (1975) Bird-counts in the Dutch Waddensea area in April and September 1973. LIMOSA 48 (1): 74-81.

Great Cormorant Phalacrocorax carbo Grey Heron Ardea cinerea Sandwich Tern Thalasseus sandvicensis = Sterna sandvicensis Little Tern Sternula albifrons = Sterna albifrons Common Tern Sterna hirundo Arctic Tern Sterna paradisaea = Sterna macrura Mallard Anas platyrhynchos Common Teal Anas crecca Eurasian Wigeon Anas penelope Northern Pintail Anas acuta Northern Shoveler Anas clypeata = Spatula clypeata Common Eider Somateria mollissima Common Shelduck Tadorna tadorna Greylag Goose Anser anser Dark-bellied Brent Goose Branta bernicla Barnacle Goose Branta leucopsis Eurasian Oystercatcher Haematopus ostralegus Grey Plover Pluvialis squatarola European Golden Plover Pluvialis apricaria Common Ringed Plover Charadrius hiaticula Kentish Plover Charadrius alexandrinus Ruddy Turnstone Arenaria interpres Eurasian Curlew Numenius arquata Bar-tailed Godwit Limosa lapponica Common Redshank Tringa totanus Spotted Redshank Tringa erythropus Common Greenshank Tringa nebularia Red Knot Calidris canutus Purple Sandpiper Calidris maritima Dunlin Calidris alpina = Calidris alpina schinzii Red Knot Calidris canutus Sanderling Calidris alba Pied Avocet Recurvirostra avosetta Great Black-backed Gull Larus marinus Lesser Black-backed Gull Larus fuscus European Herring Gull Larus argentatus Common Gull Larus canus canus Black-headed Gull Chroicocephalus ridibundus = Larus ridibundus

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