Monday, 25 April 2022


I do many bird ringing projects, but time involved in these projects which is not my job, means I haven't been maintaining my blog.  At this time of year my following projects are most active.  I am still active on Twitter - @Graham Prole

Great Black-backed Gull - Adult survival RAS

50 Adults identified by colour rings, so far, in my survey area.  Many of my project GB are also being reported but outside my RAS boundaries.  These are used for my own statistics on survival. 27/05/2022

Mute Swans of Dublin, Kildare and Wicklow Adult survival RAS

159 Individual  Adults re-sighted.  Identified by Rings  27/05/2022.  Where are all my Swans?  I should be at well over 200 by this stage.  Last year I re-sighted 258.  Almost 100 missing.

House Sparrows - Adult Survival RAS

Urban, Island and Rehab Herring Gull Project

Mute Swan Nesting survey.  The focus of this page.  The number of nests fluctuates each year as does cygnet numbers and survival to 12 weeks.  Monitoring this is part of the adult survival data.  Understanding age profile v success rate and other factors is really important in monitoring this species.



Broadmeadows, Swords

CCJT & CBKZ (Missing Colour ring) have 2 cygnets _ Thanks Tom

Broadmeadows, Swords

CALP & CCVP with 4 cygnet - again thank you Tom


Russborough House Lake, Blessington, Co Wicklow

Six cygnets reported today!  Great news, thank you Mary.

Tandys Bridge, Naas, Co Kildare.

Nest is hatched but no sign of the family.  The un ringed pair and five cygnets spotted at Lock N3 further down Grand Canal.  Thanks Deaglan

Grangecastle Business Park.  

Hatching yesterday.  2 Cygnets hatched but she is still on Eggs

Knock Lake, North County Dublin.

2 Cygnets.  Rings on adults still not read.  Thank you Phil


Waterville Park, D15

Still on Nest

Blanchardtown IT, Corduff - D15

Confirmed they have lost all their cygnets. :( 


Waterstone Park, Liffey

CAPJ (M) and female with at least 1 on her back.  Count is 1, unless further updated.  Thank you Jan


Castleknock Golf Club

CBKK + CBKL with 2 cygnets


Ballymount Park

Hatched, CBIB with 3 cygnets

Rathcoole Park

Still turning her eggs.  Couldn't see the male today.

Grangecastle Business Park

Still on eggs

Corkagh Park, Fishing Lake

Interesting:  Nest empty.  Male patrolling.  Pen and Cygnets may have been on the Island out of view.


Island Bridge have hatched - Four Cygnets in the rowing clubs pictures

Phoenix Park, Peoples garden.  5 Cygnets - Thank you Niall


Lakeside Newbridge

2 Cygnets - final count.  (CATL) Thanks Deaglan

Naas Ponds

CBPD & CBXT  7 Cygnets Thanks again Deaglan

Citywest Business Campus.

Of the 7 hatched last week, there are 5 remaining.  CCSS has taken them down to the lower pond.  Cob CCAJ has remained at the lake they nested on at Lake Drive.

Waterville Park, Blanchardstown

CCLZ is still on eggs.  


Poppintree Park, Naas Harbour, Naas Ponds Hospital, Tandys Bridge are all still on eggs.  Very unusual for the Kildare nests not to be first to hatch.

17/05/2022 Ballycragh Firhouse

4 Cygnets yesterday but only 2 left today. :( 

17/05/2022 Turvey Ponds, Rogerstown

4 Cygnets recorded today.  Thanks Jan

15/05/2021 Tymon Park Spawell (Wellington Road}

CCFF & CCFH have 5 cygnets

12/05/2022 Tymon Park, Limekiln Top Lake

CABF & CABD have 7 cygnets today.  (Known as Diarmuid & Grainne)  Thanks Brian

11/05/2022 Tolka Valley Park

CCPN with 6 cygnets.  Thank you Caoimhe

08/05/2022 Fr Collins Park, Donaghmede, 

4 Cygnets and  1egg remaining.  Thank you Tom

07/05/2022 Sean Walsh Park - Big Lake

Now only 4 Cygnets 

07/05/2022 Park West, Liffey Filters.

Two cygnets hatched apparently yesterday.  2 unhatched eggs left.  

07/05/2022 Blanchardstown IT, Corduff, Blanchardstown, D15

One hatched last night and was off with Cob and all fluffy.  3 Hatched between 10 & 11am.  One egg still to go.

07/05/2022 Waterville Park, Blanchardstown.

Still no sign of hatching.  They failed to hatch any last year, so keeping fingers crossed.

06/05/2022 Lakeside, Newbridge, Co Kildare

2 Cygnets but female still on eggs.  CATL.  Might be 2 nests.  Thanks Deaglan.

04/05/2022 Tymon Park, Dublin 24

I got a message to say 7 cygnets in Tymon Park.  Tymon Park, Limekiln big lake. CACJ & CACI (Known as Bonnie and Clyde)

03/05/2022 Bushy Park, Terenure, Dublin 6

5 Cygnets - Thanks Gregory

29/04/2022 Sean Walsh Park Big lake.

CBLK pen with 5 Cygnets.  DHE -Thank you

25/04/2022 - UCD Reilly Lake

Un-ringed pair - 3 Cygnets 

06/05/2022 Still 3 cygnets

24/04/2022 - Sean Walsh Park, Dublin 24, Stadium Lake

Cob Yellow CCHJ & Pen CBKS - 7 Cygnets

Monday, 31 May 2021

2021 Mute Swan nests in my study area.



It is gradually coming to the end of the Swan hatching season.  Below is yet another update.  

Mute Swan nesting in 2021 seems to be an odd year.  Lots of nests but low production.  

Rathcoole Cygnets hatched as did Goldenbridge / Davitt Road among others.  However, War Memorial Gardens appear to have hatched and lost all 7 in the first 3 days.  Lots of Swans and nests is not always a sign of a healthy Swan population.  The age profile is a key factor.  Presently we have a lot of young inexperienced swan parents.  A more accurate reflection will be the 12 week old Survey.  

Rathcoole Park Cygnets

Chart updated 06/06/2021.  

Wednesday, 3 March 2021

March 2021

 March 2nd 

So the movement of Black Headed Gulls has started.  I am not allowed to go to the coast to read rings at the roost but I can read them as they stop for a few days rest on their journey.

JHP9 was actually present on 28/02/2021 but the ring is so badly damaged I couldn't read the last digit

From Oslo and Winters in Galway.  This Black-headed Gull is on migration.

The usual suspects were also present.  X2VC who winters at this point on the Grand Canal in Dublin and the other Norwegian Black Headed Gull.  JLR4

Sunday, 28 February 2021

February 2021

February 28th 2021 

This lock down means I am restricted to 5Km from my home and as a result I only see the same ringed Gulls. However, the big movement of Black-headed Gulls has started and today I recorded White NUT from Denmark. I first recorded it in January 2013 when I started ring reading. I don't know where it winters, but it stops at Sean Walsh Park, Dublin every year since for a week or so before it departs our shores. Interestingly it hasn't been recorded in Denmark since the 2013 breeding season. What is amazing about this Black-headed Gull is that it was ringed in 2005 as an adult of at least 3 years old. That makes it at least 19 years old! Great to see it still going strong. Surprisingly the Darvic ring is still in reasonable condition.

Wednesday, 27 January 2021

January 2021

January 27th I have not been posting as through out lock down I just haven't been recording any Black-headed Gulls with |Colour rings. I am checking 1,000 of legs every day on my exercise within my 5KM. However, on the Grand Canal I got my first new ring for quite some time.
From Cuba in Oslo, Norway and a first sighting away from Norway

Monday, 30 November 2020

November 2020

30/11/2020 An update on the Black-headed Gulls in Dublin. I haven't got to grips with the new blog format! It is not yet user friendly! 25/11/2020 Black-headed Gull X2VC Ringed as an adult in North Easter Germany in 2019, Sighted last year and this year at the same location on the Grand Canal in Dublin.
24/11/2020 Black-headed Gull J25X Recorded in Rathcoole Park. Only other Dublin record was I recorded it in Sean Walsh Park in 2018.

Tuesday, 29 September 2020

September 2020

 September 28th

I had decided to keep this website mainly for Black-Headed Gulls but again due to COVID restrictions I am not going out as much.  But unfortunately, coloured ringed Black-headed Gulls are not being sighted by me locally at the moment.  I was at Bushy Park, which I went to to investigate new a Swan Family (which turned out to be the Family from Terenure College a mile away) and spotted a Polish Black-Headed Gull I haven't seen for years.

Black-headed Gull White [TUUA] was ringed in Poland, as an adult in 2016 and although I haven't seen it since 2017, it was recorded in Dublin in 2018 and 2019.  It wasn't interested in the bread being fed to the ducks, so ring photographed underwater.