Previous reports in this series are listed, from the most recent to the earliest. The first two (Crick et al. 1997, 1998) were produced as paper reports, but all subsequent editions are purely web-based and url addresses must be included in their citations.

Note that www.bto.org/birdtrends will always link to the home page of the most recent version of this report. Web addresses including a year (e.g. .../birdtrends/2014/...) may lead you to earlier reports in the series, now superseded.

BirdTrends 2020: trends in numbers, breeding success and survival for UK breeding birds
Woodward, I.D., Massimino, D., Hammond, M.J., Barber, L., Barimore, C., Harris, S.J., Leech, D.I., Noble, D.G., Walker, R.H., Baillie, S.R. & Robinson, R.A. (2019) BirdTrends 2020: trends in numbers, breeding success and survival for UK breeding birds. Research Report 732. BTO, Thetford. www.bto.org/our-science/publications/birdtrends/2020

BirdTrends 2019: trends in numbers, breeding success and survival for UK breeding birds
Massimino, D., Woodward, I.D., Hammond, M.J., Harris, S.J., Leech, D.I., Noble, D.G., Walker, R.H., Barimore, C., Dadam, D., Eglington, S.M., Marchant, J.H., Sullivan, M.J.P., Baillie, S.R. & Robinson, R.A. (2019) BirdTrends 2019: trends in numbers, breeding success and survival for UK breeding birds. Research Report 722. BTO, Thetford. www.bto.org/our-science/publications/birdtrends/2019

BirdTrends 2018: trends in numbers, breeding success and survival for UK breeding birds
Woodward, I.D., Massimino, D., Hammond, M.J., Harris, S.J., Leech, D.I., Noble, D.G., Walker, R.H., Barimore, C., Dadam, D., Eglington, S.M., Marchant, J.H., Sullivan, M.J.P., Baillie, S.R. & Robinson, R.A. (2018) BirdTrends 2018: trends in numbers, breeding success and survival for UK breeding birds. Research Report 708. BTO, Thetford. www.bto.org/our-science/publications/birdtrends/2018

BirdTrends 2017: trends in numbers, breeding success and survival for UK breeding birds
Massimino, D., Woodward, I.D., Hammond, M.J., Harris, S.J., Leech, D.I., Noble, D.G., Walker, R.H., Barimore, C., Dadam, D., Eglington, S.M., Marchant, J.H., Sullivan, M.J.P., Baillie, S.R. & Robinson, R.A. (2017) BirdTrends 2017: trends in numbers, breeding success and survival for UK breeding birds. Research Report 704. BTO, Thetford. www.bto.org/our-science/publications/birdtrends/2017

BirdTrends 2016: trends in numbers, breeding success and survival for UK breeding birds
Robinson, R.A., Leech, D.I., Massimino, D., Woodward, I., Eglington, S.M., Marchant, J.H., Sullivan, M.J.P., Barimore, C., Dadam, D., Hammond, M.J., Harris, S.J., Noble, D.G., Walker, R.H. & Baillie, S.R. (2016) BirdTrends 2016: trends in numbers, breeding success and survival for UK breeding birds. Research Report 691. BTO, Thetford. www.bto.org/our-science/publications/birdtrends/2016

BirdTrends 2015: trends in numbers, breeding success and survival for UK breeding birds
Robinson, R.A., Marchant, J.H., Leech, D.I., Massimino, D., Sullivan, M.J.P., Eglington, S.M., Barimore, C., Dadam, D., Downie, I.S., Hammond, M.J., Harris, S.J., Noble, D.G., Walker, R.H. & Baillie, S.R. (2015) BirdTrends 2015: trends in numbers, breeding success and survival for UK breeding birds. Research Report 678. BTO, Thetford. www.bto.org/our-science/publications/birdtrends/2015

BirdTrends 2014: trends in numbers, breeding success and survival for UK breeding birds
Baillie, S.R., Marchant, J.H., Leech, D.I., Massimino, D., Sullivan, M.J.P., Eglington, S.M., Barimore, C., Dadam, D., Downie, I.S., Harris, S.J., Kew, A.J., Newson, S.E., Noble, D.G., Risely, K. & Robinson, R.A. (2014) BirdTrends 2014: trends in numbers, breeding success and survival for UK breeding birds. Research Report 662. BTO, Thetford. www.bto.org/our-science/publications/birdtrends/2014

BirdTrends 2013: trends in numbers, breeding success and survival for UK breeding birds
Baillie, S.R., Marchant, J.H., Leech, D.I., Massimino, D., Eglington, S.M., Johnston, A., Noble, D.G., Barimore, C., Kew, A.J., Downie, I.S., Risely, K. & Robinson, R.A. (2014) BirdTrends 2013: trends in numbers, breeding success and survival for UK breeding birds. Research Report 652. BTO, Thetford. www.bto.org/our-science/publications/birdtrends/2013

BirdTrends 2012: trends in numbers, breeding success and survival for UK breeding birds
Baillie, S.R., Marchant, J.H., Leech, D.I., Massimino, D., Eglington, S.M., Johnston, A., Noble, D.G., Barimore, C., Kew, A.J., Downie, I.S., Risely, K. & Robinson, R.A. (2013) BirdTrends 2012: trends in numbers, breeding success and survival for UK breeding birds. Research Report 644. BTO, Thetford. www.bto.org/our-science/publications/birdtrends/2012

BirdTrends 2011: trends in numbers and demography for UK breeding birds
Baillie, S.R., Marchant, J.H., Leech, D.I., Renwick, A.R., Eglington, S.M., Joys, A.C., Noble, D.G., Barimore, C., Conway, G.J., Downie, I.S., Risely, K. & Robinson, R.A. (2012) BirdTrends 2011: trends in numbers and demography for UK breeding birds. Research Report 609. BTO, Thetford. (www.bto.org/our-science/publications/birdtrends/2011)

Breeding Birds in the Wider Countryside: their conservation status 2010
Baillie, S.R., Marchant, J.H., Leech, D.I., Renwick, A.R., Joys, A.C., Noble, D.G., Barimore, C., Conway, G.J., Downie, I.S., Risely, K. & Robinson, R.A. (2010) Breeding Birds in the Wider Countryside: their conservation status 2010. Research Report 565. BTO, Thetford. (www.bto.org/birdtrends2010/index.htm)

Breeding Birds in the Wider Countryside: their conservation status 2009
Baillie, S.R., Marchant, J.H., Leech, D.I., Joys, A.C., Noble, D.G., Barimore, C., Downie, I.S., Grantham, M.J., Risely, K. & Robinson, R.A. (2010) Breeding Birds in the Wider Countryside: their conservation status 2009. Research Report 541. BTO, Thetford. (www.bto.org/birdtrends2009/index.htm)

Breeding Birds in the Wider Countryside: their conservation status 2008
Baillie, S.R., Marchant, J.H., Leech, D.I., Joys, A.C., Noble, D.G., Barimore, C., Downie, I.S., Grantham, M.J., Risely, K. & Robinson, R.A. (2009) Breeding Birds in the Wider Countryside: their conservation status 2008. Research Report 516. BTO, Thetford. (www.bto.org/birdtrends2008/index.htm)

Breeding Birds in the Wider Countryside: their conservation status 2007
Baillie, S.R., Marchant, J.H., Crick, H.Q.P., Noble, D.G., Balmer, D.E., Barimore, C., Coombes, R.H.,Downie, I.S., Freeman, S.N., Joys, A.C., Leech, D.I., Raven, M.J., Robinson, R.A. & Thewlis, R.M. (2007) Breeding Birds in the Wider Countryside: their conservation status 2007. Research Report 487. BTO, Thetford. (www.bto.org/birdtrends2007/index.htm)

Breeding Birds in the Wider Countryside: their conservation status 2006
Baillie, S.R., Marchant, J.H., Crick, H.Q.P., Noble, D.G., Balmer, D.E., Barimore, C., Coombes, R.H., Downie, I.S., Freeman, S.N., Joys, A.C., Leech, D.I., Raven, M.J., Robinson, R.A. & Thewlis, R.M. (2007) Breeding Birds in the Wider Countryside: their conservation status 2006. Research Report 470. BTO, Thetford. (www.bto.org/birdtrends2006/index.htm)

Breeding Birds in the Wider Countryside: their conservation status 2005
Baillie, S.R., Marchant, J.H., Crick, H.Q.P., Noble, D.G., Balmer, D.E., Coombes, R.H., Downie, I.S., Freeman, S.N., Joys, A.C., Leech, D.I., Raven, M.J., Robinson, R.A. & Thewlis, R.M. (2006) Breeding Birds in the Wider Countryside: their conservation status 2005. Research Report 435. BTO, Thetford. (www.bto.org/birdtrends2005/index.htm)

Breeding Birds in the Wider Countryside: their conservation status 2004
Baillie, S.R., Marchant, J.H., Crick, H.Q.P., Noble, D.G., Balmer, D.E., Beaven, L.P., Coombes, R.H., Downie, I.S., Freeman, S.N., Joys, A.C., Leech, D.I., Raven, M.J., Robinson, R.A. & Thewlis, R.M. (2005) Breeding Birds in the Wider Countryside: their conservation status 2004. Research Report 385. BTO, Thetford. (www.bto.org/birdtrends2004/index.htm)

Breeding Birds in the Wider Countryside: their conservation status 2003
Crick, H.Q.P., Marchant, J.H., Noble, D.G., Baillie, S.R., Balmer, D.E., Beaven, L.P., Coombes, R.H., Downie, I.S., Freeman, S.N., Joys, A.C., Leech, D.I., Raven, M.J., Robinson, R.A. & Thewlis, R.M. (2004) Breeding Birds in the Wider Countryside: their conservation status 2003. Research Report 353. BTO, Thetford. (www.bto.org/birdtrends2003/index.htm)

Breeding Birds in the Wider Countryside: their conservation status 2001
Baillie, S.R., Crick, H.Q.P., Balmer, D.E., Beaven, L.P., Downie, I.S., Freeman, S.N., Leech, D.I., Marchant, J.H., Noble, D.G., Raven, M.J., Simpkin, A.P., Thewlis, R.M. & Wernham, C.V. (2002) Breeding Birds in the Wider Countryside: their conservation status 2001. Research Report 278. BTO, Thetford. (www.bto.org/birdtrends2001/index.htm)

Breeding Birds in the Wider Countryside: their conservation status 2000
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. & Wernham, C.V. (2001) Breeding Birds in the Wider Countryside: their conservation status 2000. Research Report 252. BTO, Thetford. (www.bto.org/birdtrends2000/index.htm)

Breeding Birds in the Wider Countryside: their conservation status 1972–1996
Crick, H.Q.P., Baillie, S.R., 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). Research Report 198. BTO, Thetford.

Breeding Birds in the Wider Countryside: their conservation status 1971–1995
Crick, H.Q.P., Baillie, S.R., Balmer, D.E., Bashford, R.I., Dudley, C., Glue, D.E., Gregory, R.D., Marchant, J.H., Peach, W.J. & Wilson, A.M. (1997) Breeding Birds in the Wider Countryside: their conservation status (1971–1995). Research Report 187. BTO, Thetford.