The Breeding Birds of Orkney

Publication Type:Journal Article
Year of Publication:1943
Authors:Lack, D
Journal:Ibis
Volume:85
Issue:1
Date Published:1943
ISBN Number:1474-919X
Keywords:Acanthis, Acanthis cannabina, Carduelis, Carduelis cannabina, Fringillidae, Fulmarus, Fulmarus glacialis, Ireland, Larus, Larus fuscus, Linaria, Linaria cannabina, Stercorarius, Stercorarius parasiticus, Turdidae, Turdus, Turdus maximus, Turdus merula
Abstract:Summary* 1A brief description is given of the islands, the main habitats and their characteristic birds. * 2Twenty per cent of the Caithness avifauna is not established in Orkney, and 32 per cent, of the Orkney breeding birds are not established in Shetland. The same species fall away much more gradually to the north in Scandinavia. * 3Inter-island distributions are tabulated. * 4Birch-forest grew in Orkney in post-Glacial times, but has now nearly vanished. * 5The bird races of the Outer Hebrides are related to those of Ireland. Orkney races have not been adequately studied. * 6At the present day 92 species breed regularly in Orkney, six formerly regular are extinct, and a number more have bred irregularly or doubtfully. * 7Points of biological interest in the annotated species list include (i.) marked fluctuations in many species; (ii.) recent colonization of Orkney in 26 species, mainly woodland birds and ducks; (iii.) marked habitat adaptations in Linnet, Rock-Pipit, Song-Thrush, Blackbird, Ring-Dove and Fulmar; (iv.) habitat differences between Herring and Lesser Black-backed Gulls; (v.) distribution of the two phases of the Arctic Skua.
URL:http://dx.doi.org/10.1111/j.1474-919X.1943.tb03992.x
Short Title:Ibis
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith