Bird ringing in Britain and Ireland in 1997

Toms, Mike P.; Clark, Jacquie A.; Balmer, Dawn E.

doi:10.1080/03078698.1999.9674187

Cited by 5 publications

(1 citation statement)

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“…It was ringed on Foula, Shetland, on 29 September 2003 and recaptured at Kergord, Shetland, just 13 days later. Amazingly, there has been a report of a foreign-ringed Paddyfield Warbler in Britain & Ireland, a bird ringed in Lithuania on 8 September 1996 was recaptured on Fair Isle, 1,441 km away, only 11 days later (Toms et al 1999). There was also a 'first' amongst the Reed Warbler Acrocephalus scirpaceus recoveries -a bird ringed in Mauritania.…”

Section: Administrationmentioning

confidence: 99%

Bird ringing in Britain and Ireland in 2000

Clark

Balmer

Blackburn

et al. 2002

Ringing & Migration

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This is the 64 th annual report of the British Trust for Ornithology's Ringing Scheme presenting work carried out and data received in 2000. Ringing birds is an important tool for conservation and research, providing information on survival, productivity and movements of birds. Much progress has been made in developing Integrated Population Monitoring (IPM) models to identify key aspects of a species' biology. Studies on Marsh and Willow Tits and on Bullfinches focussed on developing models for these species, which are of particular conservation concern. A further study described some advances in statistical theory that can be used in IPM models. A study of Redshank movements showed differences before and after closure of a tidal barrage in Cardiff Bay in south Wales. Data collected by the Constant Effort Sites (CES) Scheme showed mixed fortunes for breeding birds. Adult numbers increased significantly for four species (Long-tailed Tit, Sedge Warbler, Reed Warbler and Whitethroat) and four species showed significant declines (Linnet, Garden Warbler, Blackcap and Willow Warbler). Similarly, productivity increased significantly for three species (Blue Tit, Blackcap and Willow Warbler) and decreased significantly for three species (Reed Warbler, Chaffinch and Bullfinch). Initial work on a project to develop standard CES methods across Europe is described. 101 datasets for 43 species were submitted for the Retrapping Adults for Survival (RAS) Project. The number of birds ringed in 2000 (734,235) was 8% lower than the five-year mean 1995-1999. The recovery total (10,912) was 6% below the mean of the previous five years (1995)(1996)(1997)(1998)(1999). Recoveries of 156 BTO-ringed birds and 81 birds ringed abroad are presented in the report, including a number of significant movements of an unusual nature. Particularly noteworthy are the first report abroad of a BTO-ringed Shorelark, the first BTO-ringed Whinchat to be recovered on the wintering grounds and a Great Tit that was ringed at Rybachiy in Russia in September 1999 and recaught in Cleveland in February the following year.

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Section: Administrationmentioning

confidence: 99%

Bird ringing in Britain and Ireland in 2000

Clark

Balmer

Blackburn

et al. 2002

Ringing & Migration

Self Cite

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Bird ringing in Britain and Ireland in 1998

Clark

Wernham

Balmer

et al. 2000

Ringing & Migration

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This is the 68th annual report of the British Trust for Ornithology's Ringing Scheme, covering work carried out, and data received, in 2004. During the year, changes in bird survival in relation to winter weather were studied. In almost all cases, there was a greater influence of weather on firstyear than adult survival. A paper providing guidelines to help those setting up demographic monitoring schemes for waders was produced, with ringing as a key component. Concern about a reduction in reporting rates of ringed birds led to a study of the changes. Declines were found across nearly all taxonomic groups and may reflect a combination of changes in reporting behaviour, ringing behaviour or bird behaviour. A study of the timing of muirburning used the ringing dates of pulli in conjunction with nest record data to assess its possible effect on breeding birds. There appears to be little reason for differences in cutoff dates for muirburning in different regions and at different altitudes, but further work is required to quantify more fully the effects on moorland birds. Data gathered as part of the Constant Effort Sites (CES) Scheme showed increases in the numbers of adults of several, mainly migrant, species, possibly as a result of high rainfall in Africa south of the Sahara. Productivity was good for most species. Cetti's Warbler Cettia cetti was added to the list of species covered and a study of habitat on CE sites showed that vegetation management mitigates the effect of habitat progression on catching rates. Data for 117 Retrapping Adults for Survival (RAS) studies were submitted. Over 12,000 Swallows Hirundo rustica were ringed as part of the Swallow Roost Project. The total number of birds ringed (881,920) was the highest ever, showing an 18% increase on the mean of the previous five years (1999-2003). The recovery total (11,930) also increased (by 9% compared to the mean of the previous five years). Recoveries of 154 BTO-ringed birds and 102 ringed abroad are presented in the report. They include records that confirm suspected or known migration patterns as well as the more unexpected movements.

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