INTRODUCTION

This is foreseen to be an occasional blog relating to bird ringing at Abbotsbury Swannery. The site has operated as a BTO Constant Effort Site since 1995 and has taken part in the BTO Swallow Roost Project. In recent years we have concentrated in the autumn with both Yellow and Pied/White Wagtails. In 2009 we joined the Woodcock Network.

Wednesday, 6 July 2011

A review of Sedge Warbler movements since 1995

Following on from the recent news of two Abbotsbury ringed Sedge Warblers a review of 'to and from' for this species may be appropriate

Birds controlled from Abbotsbury (numbers involved in brackets)
Teifi Marshes, Cardigan, Wales(2)
Worthing, Sussex  (1)
Icklesham, Sussex (8)
Gosforth Park, Newcastle upon Tyne (1)
Spalding, Lincs (1)
Combwich, Bridgewater, Somerset  (1)
Billingham Beck, Cleveland (1)
Golfe du Morbihan, France  (1)
Etang Trunvel/Treogat, France (5)
Loire Atlantique, France (5)
Diawling National Park, Mauretania, West Africa (1)

Birds controlled at Abbotsbury (numbers in brackets)
Strathclye Park, Scotland (1)
Helton Tarn,Witherslack, Cumbria (1)
St Nicholas at Wade, Kent (1)
Christchurch, Hampshire  (2)
Thatcham, Berkshire  (1)
Leighton Moss, Lancs  (2)
Kenfig Pool, Glamorgan, Wales  (1)
Uskmouth, Gwent. Wales  (1)
Strand Lough, Co Down, Northern Ireland (1)
Romsey, Hampshire (1)
Barrow-in Furness, Cumbria  (1)
Caerlaverock, Dumfries and Galloway, Scotland  (3)

There have also been many local recoveries/ controls between Abbotsbury and Radipole Lake in Weymouth over the years.

Apart from the few birds in central and eastern England most movements are almost true north - south. From the result early moving Sedge Warblers (first week of August) tend to move east from Abbotsbury , then across the Channel and along the French coast. Later birds (end of August) seem to fly direct to the French coast.

On a  chance visit to Etang Trunvel two years ago I met Bruno Bargain, who runs the bird ringing there. The site is quite remarkable. It plays a big part in the RSPB/Birdlife Aquatic Warbler Project.

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