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Science
MIGRATION
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EYES ALONG THE ROUTE

Bewick's swan11D (Andrei) Moves Out
by Colin Pennycuick
20 October

The ground temperature on the Pechora continues to hover just below freezing with light winds.
Bewick's 11D (Andrei) was in his usual place at the bend of the Pechora River at 0229GMT yesterday (19th), but evidently decided soon afterwards that it was time to leave. According to the satellite figures, he set off south, up the Pechora River, but this seems to be spurious. If he had really gone up there, his next move would have taken him out to the west at a ground speed of 86 m/s, which is rather fast even for a desperate swan (24 m/s is more like it). If we ignore this unlikely location, then he moved south west, covering about 180km in a series of short hops over the next 10 hours. The latest position we have is from 1219GMT yesterday (19th), south of the Cheshskaya Gulf, near a place called Verkhnyaya Pesha. This is very similar to Kostya's behaviour when he first left the Pechora.

11D (Andrei) Moving Early Morning
by Colin Pennycuick
21 October

After moving in short hops down to a position south of the Cheshskaya Gulf by midday or so on the 19th, 11D (Andrei) stayed half a day there, then got going some time between 0200 and 0700GMT. After that, he was located in flight (but not on the ground) several times up when he was about half way between Archangel and Petrozavodsk. He seems to have landed some time between 1730 and 2230GMT, but we do not have any further locations as yet. Peter Gibbs says the northern tundra is now snow covered, and the weather would have been good with a light north-easterly wind. These are perfect conditions for nocturnal migration, under the stars and a crescent moon. Despite that, Andrei's ground speeds are unexpectedly low. There must be a reason for this, but I cannot see what it is.

Huc's leg ringWhooper Swan on the Move!
by Eileen Rees
21 October

Delighted to report that Whooper Swan (Huck) is at last on the move, and heading south west! This could mean he is a Baltic-wintering bird.

Whooper (Huck) Down North East of Archangel
by Colin Pennycuick
22 October

Whooper swan "Huck" (named after the HUC on his leg ring) finally moved out of the icy Pechora delta around about midnight GMT on 20th - 21st October. His track was not south for the Caspian, as we half expected, but south west, in the same direction that the Bewick's had taken. Like Bewick's 11D (Andrei) and 12J (Kostya), he moved intermittently at first, in short hops, then longer hops with shorter spells on the ground. At 1650GMT he was on the ground, past the Mezen River, about 150km north east of Archangel. There are whoopers from Finland and Sweden that winter around the Baltic, and it looks as though Huck is on his way to join them.

Huck then stopped at around 1600GMT yesterday, and was still in about the same place at 0700GMT this morning (22nd October). He is in an apparently uninhabited expanse of tundra about 100km north east of Archangel, between Kepina and Pinega. This is within 100km of where the two Bewick's stopped for a few hours. So far, Huck has followed a very similar pattern to the Bewick's, and if he continues to do that, he will move on after a rest. On the other hand, his final destination may be somewhere else altogether. We shall see.

Bewick's 11D (Andrei) and 12J (Kostya) are parked on Lake Peipus, probably now in feeding mode.

Why Huck's flight is a Surprise!
by Eileen Rees
23 October

We originally thought that Huck might take a more southerly track and follow the line of the Ural mountains to winter on the Black or Caspian Seas, but it seems that he's heading towards the Baltic Coast despite breeding quite a long way north and east! Birds that breed as far east as Huck were thought not to fly south west. So the points east within Russia at which Whooper Swans start following the different flyways between the Baltic Coast and the Caspian Sea are not known, but Huck gives us a clue!

All Swans Static Today
by Colin Pennycuick
23 October

11D (Andrei) is based on Lake Peipus, showing minor jumps east and west.
12D (Anatoli) came up yesterday, also on Lake Peipus. This is the transmitter that comes up at 54-hour intervals.
12J (Kostya), who was the first one out of the Pechora, evidently got tired of the mines and chimneys of Narva, and has moved down to the north end of Lake Peipus.
Whooper HUC (Huck) has continued to move slowly southwards. At 0630GMT this morning (23rd) he was on the Dvina River, about 40km south east of the centre of Archangel.

Good Lake for a Rest!
by Eileen Rees
23 October

All three of the Bewick's Swans are now using Lake Peipus, which is an established staging site for the population on the Estonia/Russia border. Aquatic vegetation in the lake includes pondweeds (Potomageton species), which form an important part of the swans' diet when available.Ìý Ring sightings have shown that individual swans generally spend about 2 weeks in Estonia before moving on to wintering sites in the Netherlands and Britain, although this may be influenced by weather conditions and local food supply. So when will the Bewick's move on?


HAVE YOUR SAY

Talking Point:

Helen - 91Èȱ¬ NHU Bristol
Hi Mondo Yes indeed there are spotters looking out for the birds. Unfortunatley, now that the transmitters are down, that is the only way to spot them. Their leg rigs are large though, so fingers crossed someone will see them.

mondo, halifax
for all we know kostya could already be in england, are you relying on a spot to varify this or is he being tracked in other ways?

Gerry Ireland
We are following every report and moving small cut-out swans around on a large wall map of northern europe. Crildren have not only learned about nature but geography as well. Fantastic project bbc keep up the good work you have lots of listeners here in ireland

Helen - 91Èȱ¬ NHU Bristol
Hi Steve in Halifax. As far as we know Huck's not in a pie! He is moving around - just not going very far. In fact, he seems quite happy in Finland, despite it not being a traditional place for Whoopers to stay over the winter. We'll just have to wait and see if he moves when it gets colder, and heads for Southern Sweden or the UK, as we would expect.

John Phelan, York
What happened to Pechora?

seve, halifax
what has happened to huck? is he in danger of being in a pie because he hasnt moved for weeks?

DAVID ROSE DONCASTER
So he is back with us good old kostya i thought you had got it wrong surley eagles and foxes dont eat transmitters just one thing with his tag do we no where he should finish up

James, Ferrybridge
Great news about Kostya. Let's hope the other lost swans have similarly only lost their transmitters.

Helen - 91Èȱ¬ NHU Bristol
Hi Helen in Peterborough. The latest news is that 12J Kostya is alive and in Holland with no transmitter. The two Bewick's swans 11D (Andrei) and 12D (Anatoli) both lost their signals. This is most likely to be satellite or battery failure. We have plenty of birdwatchers out looking for their rings, so we may be able to find out where they are. Finally Huck is stationed in Finland, but we fully expect him to move soon, as whooper swans are not known to stay in Finland over the winter. That's it for now - updates can be found via the "Eyes along the Route" section or via the headlines.

Helen in Peterborough
Where are they now? You seem not have followed the story through to the end. Please update!

Bobbie D- Australia
migration is a cool thing!

Helen - 91Èȱ¬ NHU Bristol
Hi James from Ferrybridge. It seems it was an Argos satellite error and Andrei is still in Denmark. These things do happen unfortunately. There are activity monitors on the satellites which show if the swans are flying. Hope they fly soon!

James, Ferrybridge
Is it likely that Andrei is sitting on an oil rig or in the lee of one? Presumably there's some history or otherwise for such behaviour. Colin says that he's not flying - is this know because of two passes of Argos giving the same location or is there some bimetric data available from the swans?

Eddie Brennan, Perth
What a truly awe inspiring production. Nature really has weaved a miraculous tapestry. So long as some of mankind can appreciate this wonder and learn from it, then there's hope for our species too. Thank you for several hours of entirely enthralling radio.

Helen - 91Èȱ¬ NHU Bristol
Hello! In answer to Richard in West Wales, we only put transmitters on 6 swans because that's all we could afford. The transmitters are very expensive indeed! Finally we haven't stopped broadcasting the swans' locations, as the site is being updated as and when the swans are flying. At the moment they are resting. For the most up-to-date location listen to the Today programme tomorrow morning who are broadcasting an update due to popular demand!

Tim Reynolds, Witchford, Ely
Living not far from Welney I have always taken an interest in the swan migration and visited this wetland. Your project in following the migration 'live' is fascinating to follow. Thank you so much and keep up the good work.

Muppets at Bearsden Academy
We think its a bit 'sad' following these swans but we're doing it anyway!

Brin: Harrow, London.
I never seen such a project like this before. Itz just amazing think only 91Èȱ¬ can do. Tracking swans on bbc.co.uk is a part of my daily schedule now. Well done to all. Good luck.

BOB LONDON
THANK YOU 91Èȱ¬ FOR AN EXTREMELY EDUCATIONAL DOCUMENTARY. MY THREE CHILDREN REALLY LOOK FORWARD TO TRACKING THE SWANS PROGRESS EACH DAY.WELL WORTH THE LICENCE FEE FOR PROGRAMES LIKE THIS ALONE.

bob heathrow
simply perfect.what a wonderful documentary

Richard, West Wales
The whole swan migration project was gripping and the programme during which the swans were caught, tranmittered (?) and released was entrancing. Two questions - why did you put transmitters on only six, and why did you stop broadcasting the swans' location? Anyway, thank you.

Terry in Edinburgh
The swans are part of my life now!

Jennifer, Toronto, Canada
My sister in Northumberland has just told me about this site. She is avidly following the flight of the swans. This is the first time I have heard of such a project. Good luck to you and all the swans!

b-mdavies@tinyworld.co.uk
Wonderful,wonderful,wonderful

Ken Prichard Jones, Warnham West Sussex
Fortuitously on Saturday morning two swans flew onto one of our lakes here. We had a serious oil pollution problem from upstream last year and our cob died as a result. His mate and cygnets survived and left in early summer. We think one has returned with a mate which is ringed with an orange band marked "70". Is there any way of checking where this Swan was ringed?

Carole: London
Please repeat the project each year.Having seen the wonderful film, Winged Migration, and recently visited a swannery in Dorset, I have enormouse respect for these amazing creatures. What a refreshing departure from the rest of the rubbish we are subjected to by the media...more please!

David and Emma, Stockholm
We, and family in multiple locations, have been following the project for weeks. Excellent coverage, + v interesting to hear on web radio. Thank you. We've been pleased to see small number of Whoopers and 1 Bewick flying over our house outside Stockholm. Great to know a little more about their vicissitudes. Are you planning on tracking the spring migration of the swans? Any chance you may follow other species next year?

Roberta Spencer, Chichester, England
Now that the broadcasts covering the migration of 'our' 6 swans has come to its delightful end please let us know the outcome of each of them if possible.

Peter Allen, Sunderland
You should try to link this with TV as well as radio. Thirty seconds or so on the end of a news report would increase awarness no end.

Elizabeth
Wonderful programme on both radio and the web. I am one of the few who does not have TV and now many more will see the benefit of radio and how it brings people together in a common bond. Thank you for all your information and a wonderful project Helen.

Tim in California
Brilliant...listened to the progamme driving from Winchester to Chichester last week and now listening to the "landing" on a wet night in San Francisco..Thanks.

Christie-Todmorden
Thank you 91Èȱ¬ and WWT: this is a wonderful project. Please continue until we have received all possible information about 'our' swans!

paul w. cambridge
i have just started to look at the tracking of these whooper and bewick's, and it is very interesting that this is being done, keep up the good work and i will keep looking at the updates, maybe we could see more pics of the washes they will land on. keep up the good work!!!

Steve Hughes - Reading, Berks
After being amazed by bird migration for many years, how wonderful it is to be able to track these swans step by step in this way. May I appeal to everyone to join the WWT and so enable them to carry on the fantastic work they do.

Helen - 91Èȱ¬ NHU Bristol
As far as the solar flare question from Jeremy Gaskell, London, goes, it could well be that they have interfered with some of the satellite transmissions, although we are not sure how - but they are not designed to withstand such electrical charges around them! The results would be intermittent however, and may not account for our "losses". It is possible, especially in the case of Anatoli, that his transmitter has just failed, and that our Dutch bird watchers will spot him, as, judging by the route he was taking (see WWT's map) he was headed that way. Our watchers on the ground in Estonia are saying many of the swans have moved on, so Holland is the most likely place for them now.

Catherine - London
This is a fantastic project. I have learned so much. If only your colleagues in television would treat the audience with the same respect you do, ie assume we are intelligent and can follow a story for more than three minutes. Please can this project continue after this week or at least give us updates. Thank you so much.

jon:london
fantastic and informative. a valuable project, im glad my license money is being used to compile such useful data as well as entertaining me. more of the ssame please!

mushir,karachi,Pakistan
An interesting and educational project. We are following the birds, courtesy 91Èȱ¬.Thanks

Dave the dentist - Isle of Skye
I always think that Winter starts with the arrival of the whoopers on the Island. This morning as I walked the dogs, I saw the first two whoopers feeding on the lochan behind the house. Because of the wonderful coverage by Radio 4, I was almost moved to tears, as I can now fully appreciate the enormous distances negotiated by these beautiful birds. A tremendous piece of reporting. Don't stop at the end of the week - let us find out what happens to Huck; I want to know if he finally ends up here on the island along with our population of wintering whoopers! Thank you Beeb!!

Jeremy Gaskell, London
Please could you explain to us non-scientists the impact that the solar emissions is having on the monitoring process and quite what these emissions are and how frequently they occur. I wonder how far their impact goes to towards explaining the 'negative news' from 4 out of the 6 birds.

Helen - 91Èȱ¬ NHU Bristol
In answer to Fred from Wolverhampton, it appears the swans have stopped because they have! Our two remaining swans Bewick's 11D (Andrei) and Whooper Huck (HUC) are both resting and feeding on lakes along their route. The weather is good so they are unlikely to move soon. The others unfortunately, have stopped for other reasons, either the transmitters have fallen off, or they've met untimely ends. See the "Eyes along the Route" section for all of the history of their migrations.

fred wolverhampton uk
why does it appear that the swans have stopped? 15.30 thursday 6th

Helen - 91Èȱ¬ NHU Bristol
In answer to Miriam Colin writes: The transmitters keep going until the battery runs out, which should be mid-December. We can tell if the transmittter stops moving about, but we usually do not know whether it fell off, or the swan met with an accident. There was a Brent Goose that migrated across Greenland and stopped, and was eventually located in somebody's larder, with the transmitter still beeping away. We have our suspicions about one of our missing swans.

Helen - 91Èȱ¬ NHU Bristol
In answer to Lynne, Colin Pennyquick says: "Flying non-stop at its normal cruising speed, a swan could cover about 1500 km in 24 hours, i.e. about the distance from the Pechora mouth to where they are now, at the eastern end of the Baltic. However, we seldom see them fly more than 500 km in one go, and they land for short rests quite often. They do fly at night in clear weather, but they usually land if caught in mist or fog, by day or night"

Helen - 91Èȱ¬ NHU Bristol
In answer to Daphne Shackleton , Eileen Rees from WWT said: The vast majority of the whooper swans wintering in Britain and Ireland come from the Icelandic-breeding population. The birds therefore have a relatively short flight (c. 800 km) from the breeding grounds to their wintering sites, and can arrive promptly in autumn. Our earlier satellite-tracking of Whooper Swans between Britain and Iceland found that they can make this journey in as little as 12-13 hours, although one bird blown off course in spring spent 4-5 days at sea!

Phil Royle
There are times when I wonder about the 91Èȱ¬ licence fee, but this project alone is worth the money if most of the television dross is not

Lyn :uk
the maps show the route of the migration very clearly. Please could you tell us how much distance a swan ( say, Andrei) covers in a day's flight? ( and do they fly at night?) thank you.

Gerry Hoey Ireland
I listned to your progrmme last night ''spellbound'' it was so well produced I felt I was on that boat.Well done to the team. Is there any chance of any of these swans coming to the East coast of Ireland.

Elizabeth Craig, Queensland, Australia
As my sister in Chichester England comments, we do indeed take a great interest in this project. What a great deal of pleasure the bird world as a whole provides us with. Thank you for a more intimate window into that world.

miriam, Norwich
how/ do the transmitters stop working if the bird dies?

Robert Francis - Poole
No wonder they are going in a straight line, this year they have a GPS on their back!

Helen - 91Èȱ¬ NHU Bristol
In answer to Dave in Lancashire's question, Colin Pennycuick replied: Hi Dave - It's a good question, but difficult to answer! Unlike a marathon runner, a bird cannot slow down if it gets tired, because flying slowly is harder work than flying at the "minimum power speed", which is about 18-20 metres/sec for a swan. Its options are to keep going at that speed, or stop. Actually all of our swans started by making short hops, and we think they went down quite often for short rests, even after they got going. There are other (smaller) birds that fly much longer distances without stopping. For example the evidence is fairly convincing that Alaskan Bar-tailed Godwits fly direct from Alaska to the northern tip of New Zealand. That is over 10,000 km, and takes them over a week, with no rest, no food, and no sleep.

Helen - 91Èȱ¬ NHU Bristol
In answer to Margaret in Huddersfield, we deliberately chose male swans to be tagged because they are stronger and heavier than female birds, and so more likely to survive the journey.

Helen - 91Èȱ¬ NHU Bristol
In answer to Andrew in Derby - it certainly would be worth visiting Slimbridge at the moment, as there are swans arriving all the time. They haven't had their first "swan fall" yet as the mild weather is delaying things but numbers are building slowly. We doubt if our swans will be back by the weekend. Visit the WWT site and on there you will find details of how to get to the reserves, and the opening times/cost.

Margaret - huddersfield
is it just chance that all your swans are males or do the sexes migrate differently?

Andrew Bennett, Derby
Do Bewick's swans, Hooper swans and Mute swans inter-relate or simply ignore each other? One of those being monitored is referred to as 11d: I sincerely hope nobody will refer to him as "One penny short of a shilling." Would it be worth visiting Slimbridge during this exciting time, or is it all confined to the East Coast?

bbcfan berks
The team photo was brilliant - they looked just like me and my nearest and dearest - unlike all those pretty puppets on the TV

Dr Dakers, Wokingham
What a wonderful project - I have discussed this with several classes who have been fascinated to see Science in action, not just in the classroom.

Helen - 91Èȱ¬ NHU Bristol
I had a word with Eileen Rees from WWT who said about the swans Holly saw in Norway: "The swans in Norway in December and January are almost certainly Whooper Swans; Bewick's Swans occur there only as vagrants. Whoopers breed across central and northern Scandinavia, particularly in Sweden and Finland, but migrate to Denmark, southern Norway, southern Sweden, northern Germany and the Netherlands for the winter months. It's quite possible that the Whoopers will stay in Norway all winter, but they may shift south if their feeding and roost sites freeze over. We now know that Russian-breeding birds such as "Huck" also winter in these areas, although we're not yet sure where "Huck" will end up in mid winter. Probably not as far west as Norway!

Dave Field - Lancashire
If we want to run a marathon, we need to train for weeks. How is it that migratory birds seem to be able to leave directly from their normal lives and fly phenomenal distances without any particular preparation, other than fattening up?

Helen - 91Èȱ¬ NHU Bristol
In answer to some of the questions, it isn't thought that the satellite transmitters hinder the swans as they weigh very little in comparison to the birds. They are designed to fall off once the journey is complete and yes they can fall off prematurely, which is what we think may have happened to Alexei's transmitter. Alexei was also ringed (as were over a hundred swans on the trip to Russia) so hopefully we will find him again when he arrives at his winter home. Finally yes the solar sunspot activity has affected the satellites and we lost touch with all 3 birds for a day and a half! A bit worrying as you can imagine. We're trying to find out if it affects how the birds' navigate.

Holly Anderson, Cambridge UK
Visit Welney each Winter with my mother and its great to find out what a journey the swans have made. I have a question: I have seen "song swans" on rivers near Oslo in the Winter months (Dec/ Jan) are these Whooper or Bewicks? Do they stay in Norway or move South later on? Is there a pattern for birds coming from different areas?

Valerie Gale/Vancouver
Hi Brett. Very interesting to hear about the Bewick Swans in the Arctic. Looking forward to learning more about the migration.

ray,on. canada
what a wonderfull project, keep up the fantastic work.

Stan Bueler Sherborne Dorset
What a really wonderful project. My wife and i are both oldies and more or less house bound but will be following the progress of the swans with great interest

CHRIS aberdeen
I check my pc every morning to see latest positions. We rarely see Bewick`s up here, but plenty of Whoopers. I find this project very exciting and informative and hope it can be continued each year.

John Chambers Fareham
I've fly radio controled gliders. I've noticed how migratory birds fly at a hight that is not too high that the air is too thin to be hard work and not too low to have to climb and dive to aviod buildings and trees. They always have a perfect cruising altitude. I remember years ago flying an early electric powered model, it just would not go above fifty feet cos of the air thiness. Great website and project! I will listen to Radio 4 more! I would like to suggest (not critisise) that the journey that these birds make is a very delicate balance, unless the transmitter is very light it could mean the diference of wether the bird makes it or not and thus afect your results. What percentage of the birds wieght is the transmitter?

David - Blyth, Northumberland
I think I've found this a few days too late, but wow, what a great Project and well done 91Èȱ¬ - it is this kind of stuff that makes the licence fee so worthwhile.

Helen - 91Èȱ¬ NHU Bristol
In response to people who have been wondering why some of the birds haven't flown yet, it seems like there has been a problem. Please visit "Eyes Along The Route" section. Thanks!

Helen - 91Èȱ¬ NHU Bristol
We're not sure! But the fact is there are between 20 and 25 thousand Bewick's in the Western population of which up to nine thousand winter in Britain, so if all goes well, at least two should arrive in the UK!

Ann Popham, Ashtead
How can you be sure that the swans will come to the UK?


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