Osprey Migrations

Discussion in 'science, nature and environment' started by StoneRoad, Mar 20, 2014.

  1. StoneRoad

    StoneRoad heckling from the back!

    27th May 2017 : News
    Belated updates ...

    3rd chick hatched at Bassenthwaite on the 22nd.

    2nd and 3rd chicks - Cors Dyfi on 22nd and 26th respectively.

    Glaslyn - 1st and 2nd chicks on 26th and 27th ... (will have to check on the Pont Croesor nest events, will add info later)

    Kielder 1A - chicks assumed to have hatched on 17th 20th and 23rd May (not sure about 4th egg) but the nest structure is preventing easy viewing at present.
    Kielder 2 - 24th and 25th May hatchings

    Loch Garten - with Odin failing to return from a fishing trip, all three chicks have died. EJ will probably protect her nest and hopefully find another male to pair bond with over the rest of the summer.

    Loch of the Lowes and Manton Bay are continuing to raise their respective broods.

    At least one chick has arrived at Roudsea Wood.

    I think that is a fair summary of the current situation, apologies for not posting over the last few days.
     
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  2. StoneRoad

    StoneRoad heckling from the back!

    29th May 2017 : News

    First chicks have hatched at "Border Ospreys" and at Caerlaverock
     
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  3. StoneRoad

    StoneRoad heckling from the back!

    30th May : News

    yesterday (29th) the third chick emerged at Glaslyn

    today ...
    Caerlaverock - 2nd chick hatched.
    Kielder 4 - 1st chick appeared.

    All the "bobble-heids" (that have survived this far) seem to be doing well.
    (The national average is 1.1 fledged per nest per year, apparently)
     
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  4. StoneRoad

    StoneRoad heckling from the back!

    Another catch-up News Post.
    Mostly hatchings ...
    31st May 2017 -
    Border Ospreys, 2nd chick; Caerlaverock, 3rd chick; Kielder 3, 1st chick; Kielder 4, 2nd chick;
    and 1st June - Kielder 4, 3rd chick;

    Some difficult news ...
    The Glaslyn / Pont Croesor situation has resulted in the male (Aran) choosing to support Mrs G, the pair and nest bond seems to have been too strong. This has meant that 5f and her eggs have, effectively, been deserted, thus 5f has gone fishing for herself in recent days. This is the natural consequence of a male attempting to have an additional / back-up nest and having to choose which one to support.
    Technically, the PC nest should have been located outside Aran's existing territory, but it appears that it wasn't.
    I suspect that, as with the similar situation with Blue24 at Cors Dyfi last year, a licence will be applied for - in order to remove it over the winter. Hopefully, 5f will find another nest site and a male to breed during 2018.

    The female failed to return to the Tweed Valley nest, although White SS was back by 15th April - nest failed.
     
  5. StoneRoad

    StoneRoad heckling from the back!

    Just waiting to see if/when Clarach hatches out her first chicks ...

    The bad weather means plenty of "mumbrellas" and several males have been observed to feed their mates and chicks so the youngsters spend the least possible time exposed to the wet and wind ... fingers crossed the weather improves quickly.

    Unfortunately the relentless rain will probably finish off any very small chicks; the fatal combination of wet & cold on a small chick that can't regulate body temperature itself, and a lack of feeding opportunities. it looks likely that chick3 at Kielder 4 will not survive overnight, but the older two may as they did get some fish today. This situation may apply at other nests with chicks recently hatched.
     
  6. StoneRoad

    StoneRoad heckling from the back!

    It would appear that grotty weather has meant the loss of six chicks this year from the group of nests monitored by Wildlife Forum - including one of Clarach's (at Aberfoyle) and Kielder4. Additionally, the three chicks at Loch Garten perished when "Odin" failed to return from a fishing trip.

    However, much better news is that Loch of the Lowes and Manton Bay have ringed their chicks. (16th and 21st Junes 2017, respectively).
     
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  7. StoneRoad

    StoneRoad heckling from the back!

    27th June 2017 : News update.
    Ringing in progress this morning at Cors Dyfi, and Kielder 1A accomplished that task yesterday.
    further details tba later ...
     
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  8. StoneRoad

    StoneRoad heckling from the back!

    Update for progress / details of ringing ... by date.

    Loch of the Lowes [16/6] PH1 (m) PH2 (f)
    Manton Bay [21/6] 2AM (m) 2AN (f)
    (note that Rutland Osprey project "supervise" eight nests in total and they still have chicks in five nests left to ring)
    Bassenthwaite [24/6] U6, U8 (m) U7 (f)
    Kielder 1A [26/6] Y9, 8P (f) 6P (m)
    Dyfi [27/6] Z2 (m) Z3 , Z4 (f)

    Ringing is usually done when the chicks are around five to six weeks old, leaving about two weeks before fledging occurs. If there isn't a suitable weather window, the ringing will not be attempted, as the risk from a premature attempt at flying would be too great.
     
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  9. StoneRoad

    StoneRoad heckling from the back!

    Further ringing update.
    Threave Castle [29/6] PL3 (m), PL4 (f)
    Kielder 2 [30/6] 7L (f), 7P (m)
    Glaslyn [1/7/2017] Z6.Z7,Z8 all three males

    and e2a, late news ...
    Roudsea Wood [3/7] 1N (f)

    and e2a2 - I have read that one of the juveniles from Foulshaw Moss, hatched in previous years (probably 2014), has been noted as returning from their first migration earlier (April/May 2017 approximately), no further details.
     
    Last edited: Jul 4, 2017
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  10. StoneRoad

    StoneRoad heckling from the back!

    Update for 6th July 2017.

    Ringing;
    Kielder 4 [5/7] 8L(m) and 3L(f)

    Fledging;
    Loch of the Lowes {5/7} PH2 (f)
    Manton Bay {5/7} 2AN (f)

    Wonderful !
     
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  11. StoneRoad

    StoneRoad heckling from the back!

    7th July News Update

    Ringing;
    Border Ospreys [7/7] PX6 (f) PX9, PY0 (m)

    Fledging;
    update to Loch of the Lowes - PH2 airborne at 14:14
    ditto Manton Bay - 2AN airborne at 10:14

    today -
    Manton Bay {7/7} 2AM airborne at 09:26
     
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  12. StoneRoad

    StoneRoad heckling from the back!

    12th July News Update.

    Apols for missing out a couple of days, but been otherwise occupied.

    backdated ...
    Fledging
    Loch of the Lowes {9/7} PH1
    Threave Castle {9/7} PL4 airborne at 13:46

    Bassenthwaite {11/7} U8
    Dyfi {11/7} Z2 ( Aeron) airborne at 18:06
    I'm going to have a very soft spot for this chap - I was resident in Aeron Hall at the College of Librarianship in Aberystwyth as a post-grad student; many, many years ago ...
     
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  13. StoneRoad

    StoneRoad heckling from the back!

    Apologies for not covering the departures last season. I don't think last year was particularly successful, mainly because of the bad weather.
    Personally, my Real Life was getting most complicated, as my OH had some serious health issues, two operations later, and a good recovery later.
    However ... kebabking Sirena Chilli.s purves grundy
    It is well under a week for the first arrivals to be due back at their respective nests - this is the countdown from the 45 birds (22 nests and Blue24) officially followed by the UK Ospreys website.
    I hope to monitor and report back here on a regular basis.
     
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  14. StoneRoad

    StoneRoad heckling from the back!

    First Arrival of 2018 ...

    MAYA - the female at Rutland Water's Manton Bay nest - arrived about 12:35 on 12 March 2018 (webcam view, eating a trout on the nest). This is the earliest ever arrival for the RW birds.
     
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  15. purves grundy

    purves grundy ambient clown remix

    Excellent news - fingers crossed for an increase!
     
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  16. StoneRoad

    StoneRoad heckling from the back!

    Poking about on somewhere else just now, I found a report that LH10, one of Clarach's offspring had been observed in Southern Spain. (So that is at least one of Monty's & Glensni's grandchicks surviving their first migration)
     
  17. StoneRoad

    StoneRoad heckling from the back!

    Second Arrival of 2018 ...

    on the 14th March (8 days earlier than expected from 2017 date)
    Blue 33, the male paired with Maya on the Manton Bay nest at Rutland Water

    Keep Looking Up !
     
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  18. StoneRoad

    StoneRoad heckling from the back!

    Third Arrival ...

    The female (LF15) at Lock of the Lowes (at 0730 on the first day of Spring and three days early) but her mate has not yet shown up and is now 4 days late, compared to 2017.
     
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  19. kebabking

    kebabking Unfettered ambition

    Silly question perhaps...

    Do the Ospreys live together when they are in Africa, migrate separately, and join up together again when they get to their breeding grounds, or do they only meet up for the bad thing and raising the chicks, and have nothing to do with each other for the rest of the year?

    Cheers.
     
  20. StoneRoad

    StoneRoad heckling from the back!

    Hi kebabking - The Ospreys pair for life, once established, but only for breeding.
    Sometimes a more dominant male or female will displace one from a resident pair, if this happens then the existing eggs/chicks are usually kicked out, if this happens early enough the new pair may attempt a late clutch.
    Adults and chicks/juveniles migrate separately, UK & European birds normally go to West Africa, satellite tracking and mark 1 eyeball observations have shown mainly to Senegal & Gambia - but others only go as far as Spain or some go further afield, the furthest ends up off Cameroon (and he nests in Finland !).
    HTH
     
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  21. StoneRoad

    StoneRoad heckling from the back!

    fourth arrival :

    EJ the breeding female is now resident again at Abernethy, Loch Garten - arrived @ 17:45 today (21st March); she is 21 this year - ringed July 1997 - and it will be her 15th breeding season.
    She will need a new male this year as her long term partner Odin failed to return from a fishing trip mid-season last year, and thus the nest failed in 2017.

    Also Blue 11 and 28 (both males) have been seen at River Gwash fish farm in the last couple of days. (Not too far from Rutland Water)
     
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  22. StoneRoad

    StoneRoad heckling from the back!

    Fifth Arrival :

    Blue 24 - back at Cors Dyfi at 1107 today (22nd March - which is two days early)

    I was expecting MrsG to be back, but no sign so far ...
     
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  23. StoneRoad

    StoneRoad heckling from the back!

    Blue24 has visited the Pont Croeser nest (not MrsG's but quite close) on Saturday 24th.

    No other news, although I'm convinced I saw an Osprey yesterday !
    e2a - probably a buzzard, as it was perched high in a pine tree and quite some distance away.
     
    Last edited: Mar 25, 2018
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  24. StoneRoad

    StoneRoad heckling from the back!

    Update for 25th March 2018.

    Black80, the Threave Castle Male is back. He's a Glaslyn descendant, hatched in 2006 [ 11(98) and unringed female (MrsG?)]

    Additional info ...
    Of the two birds seen at the River Gwash Fish Farm - Blue11 is the male for the Rutland "C" nest and Blue28 also nests locally, but his site is not named ...

    Have been getting a bit worried about MrsG but just seen this ...
    "Mrs G's arrival dates at Glaslyn:
    2005 - April 22nd
    2006 - March 29th...
    2007 - March 28th
    2008 - March 27th
    2009 - March 22nd
    2010 - March 23rd
    2011 - March 20th
    2012 - March 20th
    2013 - March 24th
    2014 - March 22nd
    2015 - March 19th
    2016 - March 23rd
    2017 - March 22nd"
    So that's four which were later than today - all were cold springs, weather-wise. Fingers and toes crossed for a quick appearance !
     
    Last edited: Mar 26, 2018
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  25. StoneRoad

    StoneRoad heckling from the back!

    The next arrival (as there are some "no-shows" in the list) updated today (29th) ...

    is the Balgavies Loch Male, Green BF, was due 30th March and actually arrived 27th March 2018.

    Oh, and Maya was quick off the mark, she laid her first egg on the 28th March 2018 !!!
     
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  26. StoneRoad

    StoneRoad heckling from the back!

    29th March ...
    After a "false alarm" last night from a cheeky interloper eating a fish, today at 1141 saw LM12 return to Loch of the Lowes.
    (an egg could be laid in about a week ...)
     
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  27. StoneRoad

    StoneRoad heckling from the back!

    30th March 2018

    Female Blue35 is back at Foulshaw Moss. (I think this pair may have shifted to another nest last year, but still in the monitored area).

    I was wondering if Maya would produce a second egg today or tomorrow, her first was one of the earliest recorded ...

    Still no sign of MrsG, if she doesn't turn up, maybe Blue24 and Aran will get together ?
     
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  28. StoneRoad

    StoneRoad heckling from the back!

    Addendum to 30th March ...

    Blue KC the female at the Threave Castle nest has rejoined her mate Black 80 today, 30th March

    Blue24 appears to have been visiting most of the Welsh Nests, and seemingly doing the egg-cup scraping actions ...
     
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  29. StoneRoad

    StoneRoad heckling from the back!

    Second Addendum for 30th March (poss 31st)
    Maya has laid her second egg of 2018
     
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  30. StoneRoad

    StoneRoad heckling from the back!

    Sometime between 1400/1530 (approx.) today, 1at of April 2018 ...

    MRS G came home to the Glaslyn Nest (she's about 10 days later than expected) and this will be her 15th breeding season ...
     
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