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*SCOTTISH BIRDS (29) TXT AW - The Scottish Ornithologists' Club

*SCOTTISH BIRDS (29) TXT AW - The Scottish Ornithologists' Club

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28PapersPapers<strong>Scottish</strong> Birds <strong>29</strong>:1 (2009) <strong>29</strong>:1 (2009)<strong>Scottish</strong> Birds <strong>29</strong>Table 5. Totals for the shore surveys of the Orkney Islands in winters 1982/83 plus 1983/84 (Summers et al. 1991), 1997/98 (Rehfisch et al. 2003a), and the currentsurvey in 2006/07. Percentage changes are given between the surveys in the 1980s and 2006/07. Percentage changes are not shown where numbers were less than 50.Numbers for Auskerry in the 1980s were removed so that totals are comparable to the current study.WADERS 1980s 1997/98 2006/07 Shore 2006/07 Shore + field % change shore % change Shore + fieldEurasian Oystercatcher Haematopus ostralegus 2770 3893 3117 3912 13 41Ringed Plover Charadrius hiaticula 1615 3424 1247 1<strong>29</strong>0 -23 -20European Golden Plover Pluvialis apricaria 2541 6066 10358 139 308Grey Plover Pluvialis squatarola 30 49 49Northern Lapwing Vanellus vanellus 3703 4260 7575 15 105Sanderling Calidris alba 858 1071 685 805 -20 -6Red Knot Calidris canutus 18 11 12Purple Sandpiper Calidris maritima 5603 4630 4154 4156 -26 -26Dunlin Calidris alpina 2055 1207 1241 -41 -40Common Snipe Gallinago gallinago 607 1316 1516 117 150Jack Snipe Lymnocryptes minimus 1 5 6Eurasian Woodcock Scolopax rusticola 1 7 15Bar-tailed Godwit Limosa lapponica 769 833 897 8 17Eurasian Curlew Numenius arquata 177<strong>29</strong> 28877 13630 21334 -23 20Common Redshank Tringa totanus 6938 10639 5103 5924 -26 -15Ruddy Turnstone Arenaria interpres 5961 10392 5679 6768 -5 14Total 51199 47369 65858 -7 <strong>29</strong>DUCKS 1980s 1997/98 2006/07 Shore 2006/07 Shore + field % change shore % change Shore + fieldMallard Anas platyrhynchos 2058 2374 2702 15 31Eurasian Teal Anas crecca 1594 2336 3201 47 101Tufted Duck Aythya fuligula 23 0 91 -100 <strong>29</strong>6Eurasian Wigeon Anas penelope 4846 24<strong>29</strong>7 30410 401 528Common Eider Somateria mollissima 1851 1803 1808 -3 -2Long-tailed Duck Clangula hyemalis 652 756 756 16 16Velvet Scoter Melamitta fusca 13 18 18Common Goldeneye Bucephala clangula 382 89 99 -77 -74Red-breasted Merganser Mergus serrator 254 487 487 92 92Common Shelduck Tadorna tadorna 0 20 30Total 11673 32180 39602 176 239GULLS 1980s 1997/98 2006/07 Shore 2006/07 Shore + field % change shore % change Shore + fieldBlack-headed Gull Larus ridibundus 723 289 <strong>29</strong>6 -60 -59Mew Gull Larus canus 8938 8232 11215 -8 25Herring Gull Larus argentatus 2774 3570 3822 <strong>29</strong> 38Great Black-backed Gull Larus marinus 2447 2668 <strong>29</strong>47 9 20Iceland Gull Larus glaucoides 14 7 7Glaucous Gull Larus hyperboreus 22 5 5Black-legged Kittiwake Rissa tridactyla 114 26 30 -77 -74Total 15032 14797 18322 -2 22OTHERS 1980s 1997/98 2006/07 Shore 2006/07 Shore + field % change shore % change Shore + fieldGreat Northern Diver Gavia immer 31 83 83 168 168Red-throated Diver Gavia stellata 7 36 36European Shag Phalacrocorax aristotelis 1318 4699 4699 257 257Great Cormorant Phalacrocorax carbo 433 1852 1852 328 328Grey Heron Ardea cinerea 94 137 158 46 68Rock Pigeon Columba livia 1230 1039 2187 -16 78Rock Pipit Anthus petrosus 1438 1394 1785 -3 24Common Starling Sturnus vulgaris 11710 6489 12069 -45 3Common Raven Corvus corax 170 115 198 -32 16Hooded Crow Corvus cornix 742 188 341 -75 -54Eurasian Jackdaw Corvus monedula 152 39 65 -74 -57Hen Harrier Circus cyaneus 7 3 3Peregrine Falcon Falco peregrinus 3 0 2Merlin Falco columbarius 5 3 4

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