Scottish Birds
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SCOTTISH BIRDS THE JOURNAL OF THE SCOTTISH ORNITHOLOGISTS' CLUB VOLUME 18 1995-96 Editors A-M SMOUT (18.1) then OR S R 0 OA PRATO Editorial Panel I BAINBRIDGE, D JENKINS, J B NELSON AND P J B SLATER ISSN 0036 9144 Index compiled by R C Oickson with assistance from E 0 Cameron Scottish Birds, the official journal ofthe Scottish Ornithologists' Club, publishes original material relating to ornithology in Scotland. Papers and notes should be sent to The Editor, Scottish Birds, 21 RegentTerrace, Edinburgh EH? 5BT. Two issues of Scottish Birds are published each year, in June and December. Scottish Birds is issued free to members of the Scottish Ornithogists' Club, who also receive the quarterly newsletter Scottish Bird News and the annual Scottish Bird Report and Raptor Round Up. The Scottish Ornithologists' Club was formed in 1936 to encourage all aspects of ornithology in Scotland. It has local branches which meet in Aberdeen, Ayr, the Borders, Dumfries, Dundee, Edinburgh, Glasgow, Inverness, New Galloway, Orkney, St Andrews, Stirling, Stranraer and Thurso, each with its own programme of field meetings and winter lectures. The Waterston Library at the Club's headquarters at 21 Regent Terrace, Edinburgh EH? 5BT is one of the most comprehensive ornithological libraries in Britain, and is available for reference during office hours (Monday to Friday 0930 to 1630). A stock of Scottish local bird reports is held at headquarters and may be purchased by mail order. Published by the Scottish Ornithologists Club, 21 Regent Terrace, Edinburgh EH7 SBT Printed by Douglas Gauld & Co Limited, 22 Tannadice Street, Dundee DD3 7QH SCOTTISH BIRDS Contents of Volume 181995-1996 Number 1 June 1995 Page Main papers The status of the Eider on the Isle of May and other Forth Islands J Calladine, M P Harris, S Taylor & S Wanless Lek habitats of Capercaillie at Abernethy Forest, Speyside R W Summers, R Proctor and S I H Shah 11 Nest reliefs and feeding rates of Merlins R C Dickson 20 The status and distribution of wintering Pink-footed and Greylag Geese in east central Scotland M V Bell & S F Newton 24 Short notes Diurnal and tidal activity patterns of Purple Sandpipers on the Isle of May, Fife 51 Little Ringed Plover attempt breeding in Dumfriesshire R Mearns 55 Numbers and breeding success of Manx Shearwaters on the Isle of Canna 1973-94 R L Swann 56 Buzzard's interaction with stoat J M Duncan & G F A Cooper 57 Spread wing posture by a juvenile Peregrine Falcon in winter RC Dickson 58 Magpie's nest - with a difference R Sutcliffe 59 Wheatear's mountain top roost HEM Dott 60 Items of Scottish Interest W G Harper 61 Advice to Contributors 64 Erratum Vol 17.4 Breeding seasons and nesting success of Snow Buntings in north-east Scotland 64 Number 2 December 1995 Main papers Occupation patterns of lochs by Slavonian Grebes in Scotland R W Summers & R A Mavor 65 Winter diet of Ravens in Perthshire W A Mattingley 71 Seabirds of Handa Island J G Stoneman & N A Willcox 78 An analysis of prey taken by Merlins within the Lammermuir Hills 1984- 1994 A Heavisides, I R Poxton & A W Barker 88 Yellow-legged Gulls in Scotland R W Forrester 95 Short Notes Raptor evasion and defensive behaviour by Barnacle Geese D J Patterson 101 Sparrowhawk forced to land in sea X Lambin, J Lambin & B Scott 103 Feeding rates of Hen Harriers in West Galloway R C Dickson 104 Aspects of the breeding biology of the Common Buzzard in Glen Roy D Sargent 107 Arctic Skua incubating own egg and Common Gull eggs in Common Gull nest PAT Doyle & S J Gough 110 Roseate Terns return to the Isle of May M P Harris & N Harding 111 Presumed feeding movements of auks offshore from Portnahaven on the southwest coast of Islay J Dawson 112 Successful breeding of Bluethroat in Scotland S Benn 114 Juvenile Bluethroat in Inverness-shire M I Harvey 115 Polyterritoriality in a population of Corn Buntings on North Uist M Shepherd & I R Hartley 116 Goldfinch feeding on seaweed B Hay 117 Red-backed Shrike breeding in Perthshire A M Barclay & B R S Morrison 118 Willow Warbler feeding Mistle Thrush nestlings P W Gossip 120 Carrion Crows roosting on ground with Black-headed Gulls J G Young 121 Correspondence Roosting behaviour of Wheatear J Boswall 121 Obituaries GM Dunnet D Jenkins 122 W G Harper D Clugston 126 Advice to Contributors 128 Erratum Vol. 18.1 Wintering Pink-footed and Greylag Geese in east central Scotland 128 Editorial changes 128 Number 3 June 1996 Main papers Amendments to the Scottish List R W Forrester 129 Records of species recorded in Scotland on 5 or fewer occasions P R Gordon & D Clugston 132 Changes since 1890 in the size of Pink-footed Geese wintering in Britain H Boyd & J Berry 144 A census of the St Kilda gannetry in May 1994 S Murray & S Wan less 152 Ravens nesting on buildings in Orkney C J Booth 159 The hunting behaviour of Merlins in winter in Galloway R C Dickson 165 Numbers, distribution and habitat associations of Corn Buntings on the Outer Hebrides and Tiree in 1995 P F Donald, P Hines, P Jackson J Dustow, I Hepburn, G F Albon & S Jervis 170 Short Notes Hunting times of Hen Harriers in winter R C Dickson 182 Oystercatchers nesting in clear cut forestry plantations G Shaw 183 Oystercatcher apparently rearing Lapwings T Dougall 184 Dunnock feeding in Spruce canopy G Shaw 185 Obituaries Dr Norah Armstrong R T Smith 186 lan Munro I Balfour-Paul & J Arnott 188 Correspondence Density of breeding Crows in Argyll R Hewson 190 Density of breeding Crows in Argyll H Dott 190 Red-backed Shrike breeding records in Scotland R Proctor 190 Yellow-legged Gulls in Scotland I J Stenhouse 190 Cormorants on Handa I D Pennie 191 Advice to Contributors 192 Number 4 December 1996 Main papers Numbers of Whim brei breeding in Shetland in 1989-1994 and previously C P Dore, P M Ellis & E M Stuart 193 Breeding waders in the Cairngorms Straths ESA in 1995 N Picozzi, D C Catt & R P Cummins 197 Human induced increases of Carrion Crows and gulls on Cairngorms plateaux Adam Watson 205 The Troup Head gannetry S Wanless, J Matthews & W R P Bourne 214 The feeding behaviour of Greylag and Pink-footed Geese around the Moray Firth, 1992-93 I J Stenhouse 222 The numbers of breeding waders in lowland Scotland Mark O'Brien 231 A winter survey of Goldeneyes on the River Deveron, north east Scotland Peter J Cosgrove 242 Short Notes Feeding association of Dunnock and Blackbird in snow C J Henty 247 Decline of Sutherland rookeries D M Bremner & D Macdonald 248 Probable first breeding record of Brambling in Britain represented in a museum collection H A McGhie & S A Moran 248 Mobbing of Waxwing by Chaffinches and Blue Tits J M & V A Harrison 250 Nestling predation by Merlins RC Dickson 251 Black-throated Diver feeding on Common Frogs T D H Merrie 253 Obituary Ritchie Seath Andrew T Macmilian 254 Advice to Contributors 256 INDEX TO VOLUME 18 Compiled by R C Dickson The Scottish Bird Reports for 1993-94 (nos 26-27) and the 1995 Raptor Round Up are treated as supplements to Volume 18 but with separate pagination. Species mentioned in general articles and the species lists of the Scottish Bird Reports and the Raptor Round Up are not indexed. Abernethy Forest 11 Accipiter nisus 103 ALBON, G F see DONALD, P F 170 Anseranser 24, 222 Anser brachyrhynchus 24, 144, 222 Auks 112 BARCLA Y, A M & MORRISON, B R S Red-backed Shrike breeding in Perthshire 118 BARKER, A W see HEAVISIDES, A 88 BELL, M V & NEWTON, S F Status and distribution of wintering Pink-footed and Greylag Geese in east central Scotland 24,128 BENN, S Successful breeding of Bluethroat in Scotland 114 BERRY, J see BOYD, H 144 Blackbird 247 Bluethroat, Red-spotted breeding in Scotland 114, 115 BOOTH, C J Ravens nesting on buildings in Orkney 159 BOSWELL, J Correspondence 121 BOURNE, W R P see WANLESS, S 214 BOYD, H & BERRY, J Changes since 1890 in the size of Pink-footed Geese wintering in Britain 144 Brambling 248 Branta leucopsis 101 BREMNER, 0 M & MACDONALD, 0 Decline of Sutherland rookeries 248 Bucephala clangula 242 Bunting, Corn polyterritoriality in a population in North Uist 116 Bunting, Corn numbers, distribution and habitat on the Outer Hebrides and Tiree in 1995 170 Buteo buteo 57, 107 Buzzard interaction with stoat 57 Buzzard aspects of breeding biology in Glen Roy 107 Cairngorms 197, 205 Calidris maritima 51 Capercaillie lek habitats 11 Carduelis carduelis 117 CATT, 0 C see PICOZZI, N 197 Chaffinch mobbing of Waxwings 250 Charadrius dubius 55 Circus cyaneus 104, 182 CLl:JGSTON, 0 see GORDON, P R 132 COOPER, G F A see OUNCAN, J M 57 Correspondence BOSWELL, J Roosting behaviour of Wheatears 121 OOTT, H Density of breeding Crows in Argyll 190 HEWSON, R Density of breeding Crows in Argyll 190 PENNIE, I 0 Cormorants on Handa 191 PROCTOR, R Red-backed Shrike breeding records in Scotland 190 STENHOUSE, I J Yellow-legged Gulls in Scotland 190 Corvus corax 71, 159 Corvus corone 121,190,205 COSGRAVE, P J A winter survey of Goldeneyes on the River Deveron 242 Crow, Carrion roosting on ground with Black-headedLGulls 121 Crow, Carrion human induced increases on Cairngorms plateaux 205 CUMMINS, R P see PICOZZI, N 197 OAWSON, J Presumed feeding movements of auks offshore from Islay 112 OICKSON, R C Nest reliefs and feeding rates of Merlins 20 OICKSON, R C Spread wing posture by a juvenile Peregrine Falcon in winter 58 OICKSON, R C Feeding rates of Hen Harriers in west Galloway 104 OICKSON, R C The hunting behaviour of Merlins in winter 165 OICKSON, R C Hunting times of Hen Harriers in winter 182 OICKSON, R C Nestling predation by Merlins 251 Diver, Black-throated feeding on