Wednesday 23 November 2016

Rise of the Yellow-browed Warbler



    Yellow-browed Warbler, Lannacombe, 27th October  ( Alan Searle )

    With the exception of  the first dozen or so Siberian Accentors reaching the UK this autumn
    arguably the most amazing event was the huge numbers of Yellow-browed Warblers arriving
    from no nearer than The Urals when they should have been arriving in east Asia to spend the 
    winter. When an unprecedented 139 were recorded in the Flamborough area on the Yorkshire 
    coast on 21st September local birders were right to expect some to make there way down here
    and Alan Searle trapped the first seen in the 10k patch on 26th September. The rest as they say is
    history and by early November it would seem at least 50 individuals had passed through. The first
    main arrival were 7 in the Soar area on 9th October, I would think a record count for mainland
    Devon. Peak numbers may have been around this time eg a casual 20 minute walk around a small
    wood in Hope Cove on 10th produced 2 birds. Birds seem to have been evenly spread around the
    coast, particularly the Prawle and Soar areas. Others were seen at Start Point, Beesands, Slapton,
    Lannacombe, North Hallsands, Thurlestone area and Aveton Gifford. The later I believe were the  
    only birds found away from the coast. The true number of birds we will never know without daily
    coverage of the main sites and little elsewhere. Most birds seem to have moved through quickly, eg
    Alan Searle ringed 14 birds this autumn but did not retrap one. The last record ( to date )  is      
    probably the individual trapped by Alan at Lannacombe on 15th November.
    How does this number compare historically, the answer is beyond comparison. In 2014 a figure of
    57 was put for the number recorded in Devon, in what was an astonishing record breaking year,
    well we may have exceeded that number in our small area this autumn. Alan Searle caught 14
    birds this autumn when his previous best was 4 in 2012, 2 were trapped at Slapton and  3 at South
    Milton ( none previously caught here ). How amazing to think that the first local record was as
    comparatively recent as 8th October 1968 at Slapton Ley and the next not until autumn 1980 when
    5 were seen in the Prawle area ( the same time and place as Devon's first Pallas's Warbler ). A
    mere 20 were seen through the 80's when it was an almost exclusively Prawle bird apart from a
    small number like the first winter and inland record which a few people may remember was found
    by Paul Dukes in January 1987 in Alders by what is now the entrance to Tescos in Kingsbridge,
    the alders are still there. It was the first time myself and a good few others had seen Yellow-
    browed in Devon. Surprisingly there were further records of more elusive wintering birds in the
    middle of Kingsbridge in 1993 and 1996.
    The recent rise in sightings is not always consistant. The last blank year around here was 2002,
    a year described in the Devon Bird Report as the worst for a decade. This was followed by 2003
    being the best ever year for Devon ( 4 birds locally ). On day in early October 2005 I saw 3 Yellow
    -browed Warblers at Start Point which I thought was out of this world for a local birding patch,
    an amazing day made even better by ending up watching a Radde's Warbler Pat Mayer had found
    at Prawle Point. That was a watershed day for me and local Yellow-browed Warblers, since then
    I expect to see them each autumn and I generally have. I will never take them for granted though.
    Various theories abound as to the increased numbers reaching western Europe from which we are
    benefitting. The most worrying is that they are looking for new wintering areas with the forests
    disappearing in Asia at such an alarming rate. A happier theory would be its because of a
    westward expansion in their breeding range. No doubt they were not as scarce as the numbers
    suggest they were 35 odd years ago, not so many birders hitting the headlands back then. Equally
    though the few that were out and about looking were skilled enough to pick up what is a distinctive
    bird so they were definatly a lot, lot rarer. Where are they now, again plenty of theories, the most
    pessimistic that they fly away from dry land and out over the Atlantic to an eventual watery grave,
    the happier one that they reorient south-east towards France ( like lots of our autumn Chiffchaffs )
    and away into mainland Europe. Whatever happens lets hope we can keep having a reasonable
    chance of encountering them each autumn.

  
   
   
   



    

6 comments:

  1. Hi Perry,
    I meant to say well done on starting a blog - the tricky thing is to keep up the enthusiasm to keep it going. I hope you do, I enjoyed the first two postings. I was interested to read Gavin Haigs last post about the demise of a group blog after several individual blogs started up, this has always been a bit of a worry, that those starting their own mostly birding blogs stop posting on a unified web page like Devon Birds and news gets missed.
    The great thing about a personal blog is you can say a lot more and not be hindered by the constraints of a group page.
    Well done Perry keep it up
    Mike

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  2. Hi Perry

    Always great to see a new patch blog starting.

    I lived in Plymouth in the mid 1980s and did a fair bit of my formative birding in your new patch area. The historical context on YBW is interesting. I remember twitching a YBW in Kingsbridge on 10 Jan 1987, and my first Bittern at Slapton the same day was my 200th British species.

    Other highlights included the Black-and-White Warbler at Prawle and a wonderful adult Little Gull hawking over the lilies on the south end of the Ley in July 1986.

    I now live in Hong Kong and we are indeed seeing falling numbers of YBWs, Pallas's Leaf Warblers and other palearctic migrants (especially buntings). On a more positive note, increasing forest cover in China is leading to expansions of South China species into Hong Kong and should also help birds wintering here if not further south in Indonesia, Malaysia and the Philippines, where the situation is depressing.

    Cheers
    Mike Kilburn

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  3. Hello Mike,
    thanks for noticing the Blog ! We surely must have crossed paths sometime when you lived in Plymouth. I have just checked my old Bird Diary for 1987 and I beat you to the YBW by a day ( I was then only living just around the corner mind you ). That Black and White Warbler is still the best bird I have ever seen in Devon, cannot believe it was 30 years ago next October. Sad you are seeing less palearctic migrants in Hong Kong and as you say the Bunting situation is looking desperate. Yellow-breasted Buntings disappearing fast and I see there is now a big concern over Rustic Buntings. You will be pleased to know the small area of alders etc where you saw the YBW has survived even though there is a Tesco store opposite them !

    Best wishes, Perry

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  4. Good times indeed Perry. I had my first Spoonbills at the mouth of Frogmore Creek. At that time my patch was the Plym Estuary which had some truly golden years - I'll never forget the day in March 1988 that Ross's, Bonaparte's Ring-billed and Mediterranean Gulls were all there together along with the Spotted Sandpiper I found a few weeks earlier (my only BB rarity).

    I also remember dipping an Alpine Swift over Aveton Gifford - I was on the bus and saw a birder staring at the sky and wondering why , and then reading the report a few months later!

    Cheers
    Mike

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  5. I remember those Spoonbills Mike, two of them around for a few days. Also remember the gull fest, went down one Sunday and had the Bonaparte's and Ross's in the same scope view. Also remember very well seeing your Spot Sand, you did a great job finding that one, not easy without spots ! Do you remember a Gull-billed Tern on the Plym, I think August 1987 ? I got a feeling the Alpine Swift was in Modbury, the next village towards Plymouth but I may be wrong.
    Thanks for the comments Mike and I hope you have a happy and healthy Christmas though I guess the New Year is the bigger deal in Hong Kong ?

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  6. A quiet Christmas here Perry, but I do remember the Gull-billed Tern, which took two visits i terrible weather - I even painted a highly dubious watercolour, complete with slashing rain! You're right about the Alpine Swift - Modbury it was.

    A belated Merry Christmas, and best wishes for the New Year.

    ReplyDelete