Contents of report
Breeding Bird Survey
Common Birds Census
Constant Effort Sites
Nest Record Scheme
Waterways Bird Survey
What the categories mean
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Aebischer, N.J. (1999) Multi-way comparisons and generalised linear models of nest success: extensions of the Mayfield method. Bird Study 46: S22-S31.

Anganuzzi, A.A. (1993) A comparison of tests for detecting trends in abundance indices of dophins. Fishery Bull. US 91: 183-194.

Anonymous (1995) Biodiversity: the UK Steering Group report. Vol. 1: Meeting the Rio Challenge. Vol. 2: Action Plans. HMSO, London.

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Baillie, S.R. (1990) Integrated population monitoring of breeding birds in Britain and Ireland. Ibis 132: 151-166.

Baillie, S.R. (1991) Monitoring terrestrial breeding bird populations. In Goldsmith, F.B. (ed.) Monitoring for Conservation and Ecology: 112-132. Chapman & Hall, London.

Baillie, S.R. & Green, R.E. (1987) The importance of variation in recovery rates when estimating survival rates from ringing recoveries. Acta Ornithologica 23: 41-60.

Baillie, S.R. & McCulloch, N. (1993) Modelling the survival rates of passerines ringed during the breeding season from national ringing and recovery data. In Lebreton, J.-D. & North, P.M. (eds) Marked Individuals in the Study of Bird Populations: 123-139. Birkhauser, Basel.

Baillie, S.R. & Peach, W.J. (1992) Population limitation in Palaearctic-African migrant passerines. Ibis 134 Suppl. 1: 120-132.

Bibby, C.J. & Etheridge, B. (1993) Status of the Hen Harrier Circus cyaneus in Scotland in 1988-89. Bird Study 40: 1-11.

Brooke, M. de L. & Davies, N.B. (1987) Recent changes in host usage by cuckoos Cuculus canorus in Britain. J. Anim. Ecol. 56: 873-883.

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Chamberlain, D.E. & Crick, H.Q.P. (1999) Population declines and reproductive performance of skylarks Alauda arvensis in different regions and habitats of Great Britain. Ibis 141: 38-51.

Chamberlain, D.E. & Siriwardena, G.S. (2000) The effects of agricultural intensification on Skylarks Alauda arvensis: evidence from monitoring studies in Great Britain. Environmental Reviews 8: 95-113.

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Crick, H.Q.P. (1992a) Trends in the Breeding Performance of Golden Plover in Britain. BTO Res. Rep. No 76. BTO, Thetford.

Crick, H.Q.P. (1992b) A bird-habitat coding system for use in Britain and Ireland incorporating aspects of land-management and human activity. Bird Study 39:1-12.

Crick, H.Q.P. (1993) Trends in breeding success of Merlins (Falco columbarius) in Britain from 1937-1989. In Nicholls, M.K. & Clarke, R. (Eds) Biology and Conservation of Small Falcons: 30-38. Hawk & Owl Trust, London.

Crick, H.Q.P. (1997) Long-term trends in Corn Bunting Miliaria calandra productivity in Britain. In Donald, P.F. & Aebischer, N.J. (Eds) The Ecology and Conservation of Corn Buntings Miliaria calandra: 52-64. UK Nature Conservation No. 13. JNCC, Peterborough.

Crick, H.Q.P. (1998) Decline in clutch size of Hen harriers: reply. BTO News 218: 23.

Crick, H.Q.P. & Baillie, S.R. (1996) A review of the BTO's Nest Record Scheme: Its value to the Joint Nature Conservation Committee and Country Agencies, and its methodology. BTO Research Report No. 159. BTO, Thetford.

Crick, H.Q.P., Baillie, SR., Balmer, D.E., Bashford, R.I., Beaven, L.P., Dudley, C., Glue, D.E., Gregory, R.D., Marchant, J.H., Peach, W.J. & Wilson, A.M. (1998) Breeding Birds in the Wider Countryside: their conservation status (1972-1996). BTO Research Report No. 198. BTO, Thetford.

Crick, H.Q.P., Dudley, C., Evans, A.D. & Smith, K.W. (1994) Causes of nest failure among buntings in the UK. Bird Study 41: 88-94.

Crick, H.Q.P., Dudley, C. & Glue, D.E. (1993) Breeding Birds in 1991. BTO News 185: 15-18.

Crick, H.Q.P., Dudley, C., Glue, D.E. & Thomson, D.L. (1997) UK birds are laying eggs earlier. Nature 388: 526.

Crick, H.Q.P. & Ratcliffe, D.A. (1995) The Peregrine Falco peregrinus population of the United Kingdom in 1991. Bird Study 42: 1-19.

Crick, H.Q.P., Raven, M., Beaven, L.P., Dudley, C. & Glue, D.E. (2000) Breeding trends from Nest Records leads to new alerts for declining species. BTO News 228: 8-9.

Crick, H.Q.P. & Sparks, T.H. (1999) Climate change related to egg-laying trends. Nature 399: 423-4.

DETR (2000) Report of the UK Raptor Working Group. DETR, London.

Dobson, A.P. & Hudson, P.J. (1992). Regulation and stability of a free-living host-parasite system Trichostrongylus tenuis in Red Grouse. II Population models. J. Anim Ecol. 61, 487-500.

Donald, P.F. (1997) The Corn Bunting Miliaria calandra in Britain: a review of current status, patterns of decline and possible causes. In Donald, P.F. & Aebischer, N.J. (eds) The Ecology and Conservation of Corn Buntings Miliaria calandra: 11-26. UK Nature Conservation No. 13. Joint Nature Conservation Committee, Peterborough.

Donald, P.F. & Vickery, J.A. (2000). The importance of cereal fields to breeding and wintering skylarks Alauda arvensis in the UK. In Proceedings of the 1999 BOU Spring Conference: Ecology and Conservation of Lowland Farmland Birds (Eds N.J. Aebischer, A.D. Evans, P.V. Grice & J.A. Vickery).

Elliott, G.R. & Avery, M.I. (1991) A review of reports of buzzard persecution 1975-1989. Bird Study 38: 52-56.

Etheridge, B., Summers, R.W. & Green, R.E. (1997) The effects of illegal killing and destruction of nests by humans on the population dynamics of the hen harrier Circus cyaneus in Scotland. J. Appl. Ecol. 34:1081-1105.

Fewster, R.M., Buckland, S.T., Siriwardena, G.M., Baillie, S.R. & Wilson, J.D. (2000). Analysis of population trends for farmland birds using generalized additive models. Ecology 81: 1970-1984.

Freeman, S.N., Wernham, C.V. & Balmer, D.E. (In prep.) Long-term changes in the productivity of common songbirds in Britain and Ireland from constant effort ringing.

Freeman, S.N. & Crick, H.Q.P. (In prep.) The decline of the Spotted Flycatcher Muscicapa striata in the UK: an integrated population model.

Fuller, R.J. (1996) Relationships between grazing and birds with particular reference to sheep in the British uplands. BTO Research Report No. 164. BTO, Thetford.

Fuller, R.J., Gregory, R.D., Gibbons, D.W., Marchant, J.H., Wilson, J.D., Baillie, S.R. & Carter, N. (1995) Population declines and range contractions among lowland farmland birds in Britain. Conserv. Biol. 9: 1425-1441.

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Gibbons, D.W., Avery, M., Baillie, S.R., Gregory, R.D., Kirby, J.R., Porter, R., Tucker, G.M. & Williams, G. (1996) Bird species of conservation concern in the United Kingdom, Channel Islands and Isle of Man: revising the Red Data List. RSPB Conserv. Rev. 10: 7-18.

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Glue, D.E. (1990) Breeding biology of the Grasshopper Warbler in Britain. Brit. Birds 83: 131-145.

Glue, D.E. (1994) Siskins arrive early on orange peanut bags as House Sparrow numbers decline. BTO News 194: 14-15.

Goss-Custard, J.C. (1993) The effect of migration and scale on the study of bird populations: 1991 Witherby Lecture. Bird Study 40: 81-96.

Gregory, R.D. & Marchant, J.H. (1996) Population trends of Jays, Magpies, Jackdaws and Carrion Crows in the United Kingdom. Bird Study 43: 28-37.

Henderson, I.G. & Hart, P.J.B. (1993) Provisioning, parental investment and reproductive success in Jackdaws Corvus monedula. Ornis Scandinavica 24: 142-148.

Henderson, I.G., Wilson, A.M., Steele, D. & Vickery, J.A. (in press) Population estimates, trends and habitat associations of breeding Lapwing, Curlew and Snipe in Northern Ireland in 1999. Bird Study.

Hinsley, S.A., Bellamy, P.E., Newton, I & Sparks, T.H. (1995). Habitat and landscape factors influencing the presence of individual breeding bird species in woodland fragments. J. Avian Biol. 26: 94-104.

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Hudson, R., Tucker, G.M. & Fuller, R.J. (1994) Lapwing Vanellus vanellus populations in relation to agricultural changes: a review. In Tucker, G.M., Davies, S.M. & Fuller, R.J. (eds) The Ecology and Conservation of Lapwings Vanellus vanellus: 1-33. UK Nature Conservation No 9. JNCC, Peterborough.

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Marchant, J.H., Freeman, S.N., Crick, H.Q.P. & Beaven, L.P. (In prep.) The BTO Heronries Census of England and Wales 1928-98: new indices and a comparison of analytical methods.

Marchant, J.H. & Gregory, R.D. (1999) Numbers of nesting Rooks Corvus frugilegus in the United Kingdom in 1996. Bird Study 46: 258-273.

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Marchant, J.H., Wilson, A.M., Chamberlain, D.E., Gregory, R.D. & Baillie, S.R. (1997) Opportunistic Bird Species - Enhancements for the Monitoring of Populations. BTO Research Report No. 176. BTO, Thetford.

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The report should be cited as: Baillie, S.R., Crick, H.Q.P., Balmer, D.E., Bashford, R.I., Beaven, L.P., Freeman, S.N., Marchant, J.H., Noble, D.G., Raven, M.J., Siriwardena, G.M., Thewlis, R. and Wernham, C.V. (2001) Breeding Birds in the Wider Countryside: their conservation status 2000. BTO Research Report No. 252. BTO, Thetford. (

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