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Peer-reviewed papers

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It is BTO’s policy to make public the results of our research. Our aim is to publish as much as possible of our work in the peer reviewed scientific literature.  Many results are also published in our BTO Research Report series.

Williamson, K. 1970. The Common Birds Census as a device for monitoring population levels. Bird Census Work and Environmental Monitoring. Bulletin Ecological Research Committee no. 9, Lund, Sweden. : 9-13
Batten, L.A. 1969. Bird population changes on farmland and in woodland for the years 1967-68. Bird Study 16 : 163-168 Link to Article (DOI: 10.1080/00063656909476238)
Ferguson-Lees, I.J. & Sharrock, J.T.R. 1969. Food of Barn Owls in Bedfordshire. Bedfordshire Naturalist 23 : 30-31
Flegg, J.J.M. 1969. Problems of assessing changes in wild bird populations.. Proceedings of 5th British Insecticide and Fungicide Conference
Flegg, J.J.M. & Cox, C.J. 1969. The moult of British Blue Tit and Great Tit populations. Bird Study 16 : 147-157 Link to Article (DOI: 10.1080/00063656909476236)
Ginn, H.B. 1969. The use of annual ringing and nest record card totals as indicators of population levels. Bird Study 16 : 210-248 Link to Article (DOI: 10.1080/00063656909476245)
Glue, D.E. 1969. Perch and roach as prey of Tawny Owls. British Birds 62
Mead, C.J. 1969. Ringed Peregrines in Great Britain. Book title: Peregrine Falcon Populations University of Wisconsin Press : 385-390
Sharrock, J.T.R. 1969. Grey Wagtail passage and population fluctuations in 1956-67. Bird Study 16 : 17-34 Link to Article (DOI: 10.1080/00063656909476213)
Sharrock, J.T.R. 1969. Mammals at Cape Clear Island in 1968. Cape Clear Bird Observatory Report 10 : 24-25
Sharrock, J.T.R. 1969. Red-eyed Vireo on Cape Clear Island. Irish Naturalists' Journal 16 : 235-236
Sharrock, J.T.R. 1969. Stranded jellyfish at Cape Clear Island. Irish Naturalists' Journal 16
Sharrock, J.T.R. 1969. White-throated Sparrow on Cape Clear Island: a bird new to Ireland. Irish Naturalists' Journal 16
Sharrock, J.T.R. & Preston, K. 1969. Pallas's Warbler on Cape Clear Island: a bird new to Ireland. Irish Naturalists' Journal 16 : 173-174
Sharrock, J.T.R. & Walker, P. 1969. Dartford Warbler on Cape Clear Island. Irish Naturalists' Journal 16
Snow, D.W. 1969. Some vital statistics of British Mistle Thrushes. Bird Study 16 : 34-44 Link to Article (DOI: 10.1080/00063656909476214)
Snow, D.W. 1969. The moult of British thrushes and chats. Bird Study 16 : 115-129 Link to Article (DOI: 10.1080/00063656909476230)
Spencer, R. 1969. Report on bird ringing for 1968. British Birds 62 : 393-442
Williamson, K. 1969. Bird communities in woodland habitats in Wester Ross, Scotland. Quarterly Journal of Forestry 63 : 305-328
Williamson, K. 1969. Habitat preferences of the Wren on English farmland. Bird Study 16 : 53-59 Link to Article (DOI: 10.1080/00063656909476216)
Parrinder, E.R. & Parrinder, E.D. 1969. Little Ringed Plovers in Britain in 1963-67. British Birds 62 : 219-223
Stafford, J. 1969. The census of heronries 1962-63. Bird Study 16 : 83-88
Williamson, K. 1969. A farmland bird census. A breeding bird census in woodland. School Projects in Natural History 2: (Devon Trust for Nature Conservation) : 17-22
Williamson, K. 1969. Land of birds. The Census of British birds - Part 1. Book of British Birds. Drive Publications Ltd. : 6-14
Williamson, K. 1969. Land of birds. The Census of British birds - Part 2. Book of British Birds. Drive Publications Ltd. : 460-461
Williamson, K. 1969. Weather systems and bird movements. Quarterly Journal of the Royal Meteorological Society 95 : 414-423
Bailey, R.S. 1968. An index of bird population changes in woodland. Bird Study 15 : 171-180 Link to Article (DOI: 10.1080/00063656809476200)
Bailey, R.S. 1968. The pelagic distribution of sea-birds in the western Indian Ocean. Ibis 110 : 493-519 Link to Article (DOI: 10.1111/j.1474-919X.1968.tb00060.x)
Bailey, R.S. & Batten, L.A. 1968. Bird population changes on farmland for the years 1966-67. Bird Study 15 : 181-183 Link to Article (DOI: 10.1080/00063656809476201)
Bailey, R.S., Pocklington, R. & Wills, R.R. 1968. Storm-petrels Oceanodroma spp. in the Indian Ocean. Ibis 110 : 27-34 Link to Article (DOI: 10.1111/j.1474-919X.1968.tb07978.x)
Cox, C.J. & Flegg, J.J.M. 1968. The birds of TQ77. Kent Bird Report 15 : 76-82
Feeny, P.P., Arnold, R.W. & Bailey, R.S. 1968. Autumn migration in the South Caspian region. Ibis 110 : 35-86 Link to Article (DOI: 10.1111/j.1474-919X.1968.tb07979.x)
Flegg, J.J.M. & Cox, C.J. 1968. Winter food of Long-eared Owls in Kent. Bird Study 15 : 163-164 Link to Article (DOI: 10.1080/00063656809476196)
Glue, D.E. 1968. Bird predators feeding at autumn roosts. British Birds 61 : 526-527
Glue, D.E. 1968. Prey taken by Great Grey Shrike in Hampshire. British Birds 61
Holyoak, D. 1968. A comparative study of the food of some British Corvidae. Bird Study 15 : 147-153 Link to Article (DOI: 10.1080/00063656809476194)
Holyoak, D. & Ratcliffe, D.A. 1968. The distribution of the Raven in Britain and Ireland. Bird Study 15 : 191-197 Link to Article (DOI: 10.1080/00063656809476203)
Hudson, R. 1968. Recoveries in Great Britain and Ireland of birds ringed abroad. British Birds 61 : 65-76
Hudson, R. 1968. The Great Skua in the Caribbean. Bird Study 15 : 33-34 Link to Article (DOI: 10.1080/00063656809476177)
Hudson, R. 1968. The white-phase Giant Petrels of the South Orkney Islands. Ardea 56 : 178-183
Hudson, R. & Pyman, G.A. 1968. A Guide to the Birds of Essex.
Mead, C.J. 1968. Birds as vectors of the foot-and-mouth virus. Book title: The Veterinary Annual Bristol : 70-75
Mead, C.J., Flegg, J.J.M. & Cox, C.J. 1968. A factor inhibiting subspecific differentiation in the Lapwing. Bird Study 15 : 105-106 Link to Article (DOI: 10.1080/00063656809476188)
Peal, R.E.F. 1968. The distribution of the Wryneck in the British Isles 1964-1966. Bird Study 15 : 111-126
Snow, D.W. 1968. Birds and the 1967-68 foot-and-mouth epidemic. Bird Study 15 : 184-190 Link to Article (DOI: 10.1080/00063656809476202)
Snow, D.W. 1968. Movements and mortality of British Kestrels. Bird Study 15 : 65-83 Link to Article (DOI: 10.1080/00063656809476184)

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