An Avifauna for The Treshnish Isles Please refer to the Annual Reports for other (and current) information. Greylag Goose Anser anser Breeding noted in some years, with a moulting flock present during late summer. Shelduck Tadorna tadorna Until recently a rare visitor with one pair having bred occasionally since 2003. Eider Somateria mollissima Breeds regularly in small numbers. Red-breasted Merganser Mergus serrator Rare visitor. Corncrake Crex crex Recorded almost annually and probably a regular breeder in small numbers. Red-throated Diver Gavia stellata Rare visitor Fulmar Fulmarus glacialis A common breeding species. The Treshnish Isles supported 0.2% of the Great Britain population as estimated by Seabird 2000. Manx Shearwater Puffinus puffinus A common breeding species. The Treshnish Isles supported 0.4% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Storm Petrel Hydrobates pelagicus A common breeding species. The Treshnish Isles supported 20% of the Great Britain population and between 0.7 – 1.7% of the Atlantic (north-eastern) population as estimated by Seabird 2000. Gannet Morus bassanus Regularly seen offshore. Grey Heron Ardea cinerea Rare visitor. Marsh Harrier Circus aeruginosus Rare visitor. Buzzard Buteo buteo Until recently, one pair bred in most years. Peregrine Falco peregrinus Seen most years with breeding known to occur on adjacent coasts. Water Rail Rallus aquaticus Rare visitor. Oystercatcher Haematopus ostralegus Breeds regularly in small numbers. Ringed Plover Charadrius hiaticula One or two pairs breed annually. Dunlin Calidris alpina An irregular visitor. Snipe Gallinago gallinago Breeds regularly in small numbers. Curlew Numenius arquatus An irregular visitor. Common Sandpiper Actitis hypoleucos One or two pairs usually breed. Turnstone Arenaria interpres Irregular visitor. Arctic Skua Stercorarius parasiticus Small numbers seen daily, presumably from the breeding grounds on Coll. Great Skua Stercorarius skua A small but regular breeding population has become established since the first confirmed breeding by a pair in 1998. Black-headed Gull Chroicocephalus ridibundus Irregular visitor. Kittiwake Rissa tridactyla A localised breeding species. The Treshnish Isles supported 0.2% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Common Gull Larus canus Irregular breeding species in small numbers. Lesser Black-backed Gull Larus fuscus Regular breeding species in small numbers. Herring Gull Larus argentatus A regular breeding species. The Treshnish Isles supported 0.2% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Great Black-backed Gull Larus marinus A regular breeding species. The Treshnish Isles supported 2.0% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Common Tern Sterna hirundo Irregular breeding species. The Treshnish Isles supported 0.6% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Arctic Tern Sterna paradisaea Regular breeding species. Guillemot Uria aalge Common breeding species. The Treshnish Isles supported 0.7% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Razorbill Alca torda Common breeding species. The Treshnish Isles supported 0.8% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Black Guillemot Cepphus grylle Regular breeding species in small numbers. The Treshnish Isles supported 0.4% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Puffin Fratercula arctica Common breeding species. The Treshnish Isles supported 0.3% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Rock Dove Columba livia Regular breeding species in very small numbers. Swift Apus apus Irregular visitor Skylark Alauda arvensis A regular breeding species in small numbers. Swallow Hirundo rustica Irregular visitor House Martin Delichon urbicum Rare visitor Meadow Pipit Anthus pratensis A regular breeding species in small numbers. Rock Pipit Anthus petrosus A regular breeding species in small numbers. Pied Wagtail Motacilla alba yarrelli An irregular breeding species. Wren Troglodytes troglodytes A regular breeding species, quite common where habitat is suitable. Dunnock Prunella modularis Irregular breeding species. Wheatear Oenanthe oenanthe A regular breeding species in small numbers. Blackbird Turdus merula Rare visitor. Song Thrush Turdus philomelos Rare visitor Sedge Warbler Acrocephalus schoenobaenus A scarce but almost annual visitor. Hooded Crow Corvus cornix A regular breeding bird in small numbers. Raven Corvus corax At least one pair breeds in most years. Starling Sturnus vulgaris A regular breeding species in small numbers. Twite Carduelis flavirostris Regular breeding species in small numbers Reed Bunting Emberiza schoeniclus Rare visitor.
An Avifauna for The Treshnish Isles PleaseAn Avifauna for The Treshnish Isles This represents birds seen and censused by members of TIARG during their annual visit at the end of June or early July. Please refer to the Annual Reports for other (and current) information. Greylag Goose Anser anser Breeding noted in some years, with a moulting flock present during late summer. Shelduck Tadorna tadorna Until recently a rare visitor with one pair having bred occasionally since 2003. Eider Somateria mollissima Breeds regularly in small numbers. Red-breasted Merganser Mergus serrator Rare visitor. Corncrake Crex crex Recorded almost annually and probably a regular breeder in small numbers. Red-throated Diver Gavia stellata Rare visitor Fulmar Fulmarus glacialis A common breeding species. The Treshnish Isles supported 0.2% of the Great Britain population as estimated by Seabird 2000. Manx Shearwater Puffinus puffinus A common breeding species. The Treshnish Isles supported 0.4% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Storm Petrel Hydrobates pelagicus A common breeding species. The Treshnish Isles supported 20% of the Great Britain population and between 0.7 – 1.7% of the Atlantic (north-eastern) population as estimated by Seabird 2000. Gannet Morus bassanus Regularly seen offshore. Grey Heron Ardea cinerea Rare visitor. Marsh Harrier Circus aeruginosus Rare visitor. Buzzard Buteo buteo Until recently, one pair bred in most years. Peregrine Falco peregrinus Seen most years with breeding known to occur on adjacent coasts. Water Rail Rallus aquaticus Rare visitor. Oystercatcher Haematopus ostralegus Breeds regularly in small numbers. Ringed Plover Charadrius hiaticula One or two pairs breed annually. Dunlin Calidris alpina An irregular visitor. Snipe Gallinago gallinago Breeds regularly in small numbers. Curlew Numenius arquatus An irregular visitor. Common Sandpiper Actitis hypoleucos One or two pairs usually breed. Turnstone Arenaria interpres Irregular visitor. Arctic Skua Stercorarius parasiticus Small numbers seen daily, presumably from the breeding grounds on Coll. Great Skua Stercorarius skua A small but regular breeding population has become established since the first confirmed breeding by a pair in 1998. Black-headed Gull Chroicocephalus ridibundus Irregular visitor. Kittiwake Rissa tridactyla A localised breeding species. The Treshnish Isles supported 0.2% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Common Gull Larus canus Irregular breeding species in small numbers. Lesser Black-backed Gull Larus fuscus Regular breeding species in small numbers. Herring Gull Larus argentatus A regular breeding species. The Treshnish Isles supported 0.2% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Great Black-backed Gull Larus marinus A regular breeding species. The Treshnish Isles supported 2.0% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Common Tern Sterna hirundo Irregular breeding species. The Treshnish Isles supported 0.6% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Arctic Tern Sterna paradisaea Regular breeding species. Guillemot Uria aalge Common breeding species. The Treshnish Isles supported 0.7% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Razorbill Alca torda Common breeding species. The Treshnish Isles supported 0.8% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Black Guillemot Cepphus grylle Regular breeding species in small numbers. The Treshnish Isles supported 0.4% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Puffin Fratercula arctica Common breeding species. The Treshnish Isles supported 0.3% of the Great Britain population as estimated by Seabird 2000 (1998 – 2002). Rock Dove Columba livia Regular breeding species in very small numbers. Swift Apus apus Irregular visitor Skylark Alauda arvensis A regular breeding species in small numbers. Swallow Hirundo rustica Irregular visitor House Martin Delichon urbicum Rare visitor Meadow Pipit Anthus pratensis A regular breeding species in small numbers. Rock Pipit Anthus petrosus A regular breeding species in small numbers. Pied Wagtail Motacilla alba yarrelli An irregular breeding species. Wren Troglodytes troglodytes A regular breeding species, quite common where habitat is suitable. Dunnock Prunella modularis Irregular breeding species. Wheatear Oenanthe oenanthe A regular breeding species in small numbers. Blackbird Turdus merula Rare visitor. Song Thrush Turdus philomelos Rare visitor Sedge Warbler Acrocephalus schoenobaenus A scarce but almost annual visitor. Hooded Crow Corvus cornix A regular breeding bird in small numbers. Raven Corvus corax At least one pair breeds in most years. Starling Sturnus vulgaris A regular breeding species in small numbers. Twite Carduelis flavirostris Regular breeding species in small numbers Reed Bunting Emberiza schoeniclus Rare visitor. refer to the Annual Reports for other (and current) information. Greylag Goose Anser anser Breeding noted in some years, with a moulting flock present during late summer.
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Avifauna