| UK |
20 |
A001-A |
Gavia stellata |
North-west Europe (win) |
|
Red-throated Diver |
B |
2006 |
2006 |
2006 |
pairs |
p |
1,000 |
1,600 |
Best estimate |
3 |
Good |
Dillon, I.A., Smith, T.D., Williams, S.J., Haysom, S., & Eaton, M.A. 2009. Status of Red-throated Divers in Britain in 2006. Bird Study 56: 147157. |
|
|
1994 to 2006 |
1994 |
2006 |
- |
-10% |
-10% |
3 |
3 |
Gibbons, D.W. Bainbridge, I.P., Mudge, G.P., Tharme, A.P. & Ellis, P.M. 1997. The status and distribution of the Red-throated Diver Gavia stellata in Britain in 1997. Bird Study 44:194-205. Dillon, I.A., Smith, T.D., Williams, S.J., Haysom, S., & Eaton, M.A. 2009. Status of Red-throated Divers in Britain in 2006. Bird Study 56: 147157. |
1983 to 2006 |
1983 |
2006 |
0 |
|
|
3 |
3 |
Gomersall, C.H., Morton, J.S., & Wynde, R.M. 1984. Status of breeding Red-throated Divers in Shetland, 1983. Bird Study 31: 223-229. Dillon, I.A., Smith, T.D., Williams, S.J., Haysom, S., & Eaton, M.A. 2009. Status of Red-throated Divers in Britain in 2006. Bird Study 56: 147157. [Long-term trend is -4.0%] |
British Trust for Ornithology. Bird Trends 2012: trends in numbers, breeding success and survival for UK breeding birds. Available at <http://blx1.bto.org/birdtrends/species.jsp?year=2012&s=retdi> [Long-term trend is -4.0%] |
2007-2011 |
No |
Yes |
|
Yes |
34,500 |
3 |
3 |
Balmer, D., Gillings, S., Caffrey, B., Swann, B., Downie, I. & Fuller, R.J. 2013 in press. Bird Atlas 2007-2011. The breeding and wintering birds of Britain and Ireland. BTO, BirdWatch Ireland & SOC; Thetford, Norfolk. |
Not appropriate |
|
1988-1991 to 2007-2011 |
1989 |
2009 |
- |
-8.97% |
-8.97% |
3 |
3 |
Gibbons, D.W., Reid, J.B. & Chapman, R.A. 1993. The New Atlas of Breeding Birds in Britain and Ireland: 19881991. Poyser, London. Balmer, D., Gillings, S., Caffrey, B., Swann, B., Downie, I. & Fuller, R.J. 2013. Bird Atlas 2007-2011. The breeding and wintering birds of Britain and Ireland. BTO, BirdWatch Ireland & SOC; Thetford, Norfolk. |
1968-1972 to 2007-2011 |
1970 |
2009 |
+ |
11.29% |
11.29% |
3 |
3 |
Sharrock, J.T.R. 1976. The Atlas of Breeding Birds in Britain and Ireland. Berkhamsted, T. & A.D. Poyser. Balmer, D., Gillings, S., Caffrey, B., Swann, B., Downie, I. & Fuller, R.J. 2013. Bird Atlas 2007-2011. The breeding and wintering birds of Britain and Ireland. BTO, BirdWatch Ireland & SOC; Thetford, Norfolk. |
|
NA |
|
|
|
pairs |
i |
397 |
|
3 |
0 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| UK |
20 |
A001-A |
Gavia stellata |
North-west Europe (win) |
|
Red-throated Diver |
W |
2001-2006 |
2001 |
2006 |
individuals |
i |
17,000 |
17,000 |
Best estimate |
2 |
Moderate |
Musgrove, A.J., Austin, G.E., Hearn, R.D., Holt, C.A., Stroud, D.A. & Wotton, S.R. 2011. Overwinter population estimates of British waterbirds. British Birds 104: 364397. |
|
|
1999/2000 to 2010/11 |
1999 |
2010 |
+ |
19.0% |
19.0% |
2 |
2 |
Holt, C.A., Austin, G.E., Calbrade, N.A., Mellan, H.J., Hearn, R.D., Stroud, D.A., Wotton, S.R. & Musgrove, A.J. (2012). Waterbirds in the UK 2010/11: The Wetland Bird Survey. BTO/RSPB/JNCC, Thetford. 183 pp. |
1993/94 to 2010/11 |
1993 |
2010 |
+ |
88.7% |
88.7% |
2 |
2 |
Holt, C.A., Austin, G.E., Calbrade, N.A., Mellan, H.J., Hearn, R.D., Stroud, D.A., Wotton, S.R. & Musgrove, A.J. (2012). Waterbirds in the UK 2010/11: The Wetland Bird Survey. BTO/RSPB/JNCC, Thetford. 183 pp. |
Monitoring commenced 1993/4. Quality of trend estimates is poor, as monitoring excludes offshore wintering areas which hold a significant proportion of the population |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
NA |
|
|
|
individuals |
p |
7,475 |
|
3 |
+ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| UK |
30 |
A689 |
Gavia arctica |
arctica, Northern Europe & Western Siberia/Europe |
|
Black-throated Diver |
B |
2006 |
2006 |
2006 |
pairs |
p |
190 |
250 |
Best estimate |
3 |
Good |
Eaton, M.A., Austin, G.E., Banks, A.N., Conway, G., Douse, A., Grice, P.V., Hearn, R., Hilton, G., Hoccom, D., Musgrove, A.J., Noble, D.G., Ratcliffe, N., Rehfisch, M.M., Worden, J. & Wotton, S. 2007. The State of the UKs Birds 2006. RSPB, BTO, WWT, CCW, EHS, NE and SNH, Sandy. Musgrove, A.J., Aebischer, N.J., Eaton, M.A., Hearn, R.D., Newson, S.E., Noble, D.G., Parsons, M., Risely, K. & Stroud, D.A. 2013. Population estimates of birds in Great Britain and the United Kingdom. British Birds 106: 64-100. |
|
|
1994 to 2006 |
1994 |
2006 |
+ |
16% |
16% |
3 |
3 |
Whyte, C., Hancock, M., Bainbridge, I. & Jackson, D. 1995. The joint RSPB SNH 1994 Black-throated Diver Gavia arctica survey. Unpublished report, RSPB. Eaton, M.A., Austin, G.E., Banks, A.N., Conway, G., Douse, A., Grice, P.V., Hearn, R., Hilton, G., Hoccom, D., Musgrove, A.J., Noble, D.G., Ratcliffe, N., Rehfisch, M.M., Worden, J. & Wotton, S. 2007b. The State of the UKs Birds 2006. RSPB, BTO, WWT, CCW, EHS, NE and SNH, Sandy. |
1985 to 2006 |
1985 |
2006 |
+ |
46% |
46% |
3 |
3 |
Campbell, L.H. & Talbot, T.R. 1987. Breeding status of Black-throated Divers in Scotland. British Birds 80: 1-8. Eaton, M.A., Austin, G.E., Banks, A.N., Conway, G., Douse, A., Grice, P.V., Hearn, R., Hilton, G., Hoccom, D., Musgrove, A.J., Noble, D.G., Ratcliffe, N., Rehfisch, M.M., Worden, J. & Wotton, S. 2007b. The State of the UKs Birds 2006. RSPB, BTO, WWT, CCW, EHS, NE and SNH, Sandy. |
Some of positive trend probably reflects progressively better survey coverage. Since 1994 population has been stable in the south of range but increasing slowly in north |
2007-2011 |
No |
Yes |
|
Yes |
21,800 |
3 |
3 |
Balmer, D., Gillings, S., Caffrey, B., Swann, B., Downie, I. & Fuller, R.J. 2013 in press. Bird Atlas 2007-2011. The breeding and wintering birds of Britain and Ireland. BTO, BirdWatch Ireland & SOC; Thetford, Norfolk. |
Not appropriate |
|
1988-1991 to 2007-2011 |
1989 |
2009 |
+ |
9.55% |
9.55% |
3 |
3 |
Gibbons, D.W., Reid, J.B. & Chapman, R.A. 1993. The New Atlas of Breeding Birds in Britain and Ireland: 19881991. Poyser, London. Balmer, D., Gillings, S., Caffrey, B., Swann, B., Downie, I. & Fuller, R.J. 2013. Bird Atlas 2007-2011. The breeding and wintering birds of Britain and Ireland. BTO, BirdWatch Ireland & SOC; Thetford, Norfolk. |
1968-1972 to 2007-2011 |
1970 |
2009 |
0 |
2.83% |
2.83% |
3 |
3 |
Sharrock, J.T.R. 1976. The Atlas of Breeding Birds in Britain and Ireland. Berkhamsted, T. & A.D. Poyser. Balmer, D., Gillings, S., Caffrey, B., Swann, B., Downie, I. & Fuller, R.J. 2013. Bird Atlas 2007-2011. The breeding and wintering birds of Britain and Ireland. BTO, BirdWatch Ireland & SOC; Thetford, Norfolk. |
|
NA |
|
|
|
pairs |
i |
100 |
|
3 |
+ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| UK |
30 |
A689 |
Gavia arctica |
arctica, Northern Europe & Western Siberia/Europe |
|
Black-throated Diver |
W |
2004/05 - 2008/09 |
2004 |
2008 |
individuals |
i |
560 |
560 |
Five-year mean |
2 |
Moderate |
Musgrove, A.J., Austin, G.E., Hearn, R.D., Holt, C.A., Stroud, D.A. & Wotton, S.R. 2011. Overwinter population estimates of British waterbirds. British Birds 104: 364397. |
|
Period = 2004/05 - 2008/09 |
1999/2000 to 2010/11 |
1999 |
2010 |
+ |
42.9% |
42.9% |
2 |
2 |
Holt, C.A., Austin, G.E., Calbrade, N.A., Mellan, H.J., Hearn, R.D., Stroud, D.A., Wotton, S.R. & Musgrove, A.J. (2012). Waterbirds in the UK 2010/11: The Wetland Bird Survey. BTO/RSPB/JNCC, Thetford. 183 pp. |
1980/81 to 2010/11 |
1980 |
2010 |
+ |
25.0% |
25.0% |
2 |
2 |
Holt, C.A., Austin, G.E., Calbrade, N.A., Mellan, H.J., Hearn, R.D., Stroud, D.A., Wotton, S.R. & Musgrove, A.J. (2012). Waterbirds in the UK 2010/11: The Wetland Bird Survey. BTO/RSPB/JNCC, Thetford. 183 pp. |
Monitoring commenced 1992/3. Quality of trend estimates is poor, as monitoring excludes offshore wintering areas which hold a significant proportion of the population |
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|
|
|
|
|
|
|
|
|
|
NA |
|
|
|
|
|
|
|
|
|
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