Willow Warbler

Phylloscopus trochilus

(pp.216–217)

Selected new records

 

Earliest and latest since 2006 (last year covered in full by The Birds of Lundy): Earliest 16 Mar 2013 (one); Latest 7 Nov 2008 (one).

2007

Early autumn-passage fall

26 Jul – Some 200, mostly juvenile birds, primarily in Millcombe/St John’s Valley and along the East Side.

2009

Birds showing characteristics of northern race

24 & 27 Aug – Single first-year birds showing the characteristics of P. t. acredula were trapped and ringed in St John’s Valley on 24 Aug and on the Terrace on 27 Aug (John Walshe).

2011

Early autumn-passage fall

23 & 24 Jul – Autumn passage was underway by the end of Jul, when Andrew Cleave witnessed an impressive fall on 23rd, with birds “along the East Side from Millcombe almost as far as Gannets’ Bay – the numbers had thinned out at that point but there were still birds to be seen flitting through the bracken and feeding amongst rocks. The greatest density was between Millcombe and the Quarries – we did not do a count, but there always seemed to be 10-15 birds in view as we headed north, so the total must have run into hundreds of birds”. Large numbers were still present early the following afternoon, when, during a day trip, many were seen in Millcombe and along the walls between the High Street Gate and Old Light (T. Jones). Note: This paragraph was accidentally duplicated within the 2012 Lundy Bird Report.

2012

Significant numbers during spring passage

8 Apr to 2 May – Large numbers of spring migrants grounded during a month of very unsettled weather. The first real influx brought 40 on 8 Apr. Thereafter, present virtually daily to the end of the month, with counts of 40 or more on a further 14 dates and maxima of 200 on 19th, 250 on 21st & 24th, an exceptional 1,000 on 26th & 27th and 200 on 28th. In just four days, from 11 to 14 Apr, Chris Dee ringed over 180 Willow Warblers – more than were ringed on Lundy during the whole of 2011 – including the 100,000th bird to be ringed under the auspices of the LFS. High numbers continued into early May, with 500 on 1st and 200 on 2nd.

Breeding confirmed

Two pairs were feeding young in June – a pair in Hanmers/Castle Copse and a pair in Millcombe, below Brambles (Tim Davis & Tim Jones). Although one or two singing males have apparently held territory at various of the East Side combes and copses in most years, 2012 remains the only year in which breeding has been confirmed since publication of The Birds of Lundy in 2007.

2013

Notable spring-passage count

26 Apr – A fall of 1,000 occurred, of which 110 were ringed. The figure of 1,000 equalled the estimate for 26 & 27 Apr 2012 and these three dates still represent the highest spring-passage totals since publication of The Birds of Lundy in 2007. There have only ever been three counts of more than 1,000; the record standing at 3,000 on 15 Apr 1987.

2017

Bird showing characteristics of northern race

31 Oct – A bird showing characteristics associated with the northern race P. t. acredula was in lower Millcombe (Paul Holt).

2018

Early autumn-passage influx

25 Jul – A total of 117, including both adults and juveniles, counted following an overnight influx of migrants.

2019

Notable spring-passage count

29 Apr – A fall occurred, estimated at 1,000 birds. This figure equals the estimate for 26 & 27 Apr 2012 and 26 Apr 2013. Together, these dates account for the highest spring-passage totals since publication of The Birds of Lundy in 2007. There have only ever been three counts of more than 1,000 in the island's ornithological history, the record standing at 3,000 on 15 Apr 1987.

Early autumn-passage influx

27 Jul – At least 95 were present in Millcombe following an overnight arrival of migrants.

 

Ringing

Ringing control: LFS received late notification of a Willow Warbler ringed as an adult at South Walney, Barrow-in-Furness, Cumbria on 17 Aug 1994 (ring no. 3L5103 ) was controlled on Lundy on 09 Apr 1995 (235 days; 334 km; SSW 198°). Note: Due to the late notification this control is not included in The Birds of Lundy.

Ringing control: A Willow Warbler ringed as a first-year female at Bere Regis, Dorset, on 18 Aug 2007 (ring no. 3Z7473) was controlled on Lundy on 02 May 2008 (258 days; 179 km; WNW 286°).

Ringing control: A Willow Warbler ringed as a first-year female at Portland Bill, Dorset, on 06 Aug 2007 (ring no. CBN108) was controlled on Lundy on 28 Apr 2008 (266 days; 172 km; WNW 295°).

Ringing control: A Willow Warbler ringed as a first-year bird at Gibraltar Point, Lincolnshire, on 23 Aug 2005 (ring no. BAT291) was controlled on Lundy on 05 May 2008 (986 days; 402 km; WSW 238°).

These three movements of birds ringed on the south and east coast during autumn migration and controlled on Lundy during subsequent northward migrations in spring 2008 fit well with the overall pattern of ringing movements to/from Lundy described in The Birds of Lundy.

Ringing control: A Willow Warbler ringed as an adult female at Portland Bill, Dorset, on 20 Apr 2009 (ring no. CKB975) was controlled on Lundy on 24 Apr 2009 (4 days; 172 km; WNW 295°). This is the eighth ringing movement involving Lundy and Portland Bill and the second time a Willow Warbler ringed at Portland Bill when arriving in the UK on spring migration has been trapped a few days later on Lundy.

Ringing control: A Willow Warbler ringed as a first-year bird on Lundy on 16 Sep 2009 (ring no. CVJ608) was controlled at Dunsby, Bourne, Lincolnshire on 03 Sep 2011 (717 days; 348 km; NE 58°).

Ringing control: A Willow Warbler ringed as an adult on Lundy on 22 Apr 2011 (ring no. DER481) was controlled at Isla Grosa, San Xavier, Murcia, Spain on 07 Apr 2012 (351 days; 1,514 km; S 169°).

Ringing control: A Willow Warbler ringed as an adult male at Portland Bill, Dorset, on 18 Apr 2010 (ring no. DBE110) was controlled on Lundy on 12 Apr 2012 (725 days; 172 km; WNW 295°).

Ringing control: A Willow Warbler ringed as an adult at South Milton Ley, Devon on 09 Apr 2013 (ring no. HBC211) was controlled on Lundy on 12 Apr 2013 (3 days; 116 km; NNW 331°).

Ringing control: A Willow Warbler ringed as an adult at Porth Hellick, St Mary’s, Isles of Scilly on 23 Apr 2013 (ring no. ERA078) was controlled on Lundy on 25 Apr 2013 (2 days; 180 km; NE 40°).

Ringing control: A Willow Warbler ringed as a first-year bird at Fuentecantos, Soria, Castilla y León, Spain on 25 Aug 2012 (ring no. PF5507) was controlled on Lundy on 19 Apr 2014 (602 days; 1,052 km; N 351°).

Ringing control: A Willow Warbler ringed as an adult on Lundy on 15 Apr 2014 (ring no. HBP721) was controlled at Durlston Country Park, Dorset on 11 Aug 2015 (483 days; 202 km; ESE 109°).

Ringing control: A Willow Warbler ringed as a first-year male on Lundy on 22 Apr 2018 (ring no.KEH410) was controlled on Skokholm, Pembrokeshire, on 26 Apr 2018 (4 days; 74 km; NW 325°).

Ringing control: A Willow Warbler ringed as a first-year bird on Skokholm, Pembrokeshire, on 30 Aug 2018 (ring no.KYN356) was controlled on Lundy on 29 Apr 2019 (242 days; 74 km; SE 145°).

 

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