Herring Gull / Gwylan y Penwaig

Larus argentatus

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Major towns

Birding sites

Contains Ordnance Survey data
© Crown copyright and database right 2013

SN90A - Mynydd Blaenrhondda SN90F - Mynydd Ystradffernol SN90K - Lluest-wen Reservoir (Increased from absent to present/possible breeding) SN90Q - Panwen Garreg-wen SN90V - Rhis-gwawr SN90B - Craig y Llyn (Increased from absent to present/possible breeding) SN90G - Mynydd Beili-glas (Increased from absent to present/possible breeding) SN90L - Mynydd Bwllfa SN90R - Dare Valley Country Park SN90W - Cwmdare (Decreased from probable/confirmed breeding to present/possible breeding) SN90C - Cwm-hwnt SN90H - Rhigos (Increased from absent to probable/confirmed breeding) SN90M - Hirwaun SN90S - Penywaun (Increased from absent to present/possible breeding) SN90X - Llwydcoed (Decreased from probable/confirmed breeding to absent) SN90D - Pontneddfechan SN90I - Hirwaun Industrial Estate (Increased from absent to probable/confirmed breeding) SN90N - Pontbren Llwyd (Increased from absent to present/possible breeding) SN90T - Llwyncoch (Increased from absent to present/possible breeding) SN90Y - Nant-moel Reservoir (Increased from absent to present/possible breeding) SN90E - Hendrefydd SN90J - Moel Penderyn SN90P - Penderyn (Increased from absent to present/possible breeding) SN90U - Mynydd-y-glog SN90Z - Onllwyn SN91F - Hendre-bolon (Increased from absent to present/possible breeding) SN91K - Garn Ddu SN91Q - Nant-maden SN91V - Cefn Sychbant SN91R - Tir-yr-onen SN91W - Pant y Gadair SN91X - Cefn Nantygeugarn SO00A - Aberaman SO00F - Cefnpennar SO00K - Cwmpennar SO00Q - Aberfan (Increased from absent to present/possible breeding) SO00V - Bedlinog SO00B - Abernant (Decreased from probable/confirmed breeding to present/possible breeding) SO00G - Aberdare SO00L - Abercanaid SO00R - Troedyrhiw (Unchanged present/possible breeding) SO00W - Mynydd Cilfach-yr-encil (Increased from absent to present/possible breeding) SO00C - Coedcae Farm SO00H - Blaencanaid (Increased from absent to present/possible breeding) SO00M - Twynrodyn (Decreased from probable/confirmed breeding to present/possible breeding) SO00S - Pentrebach (Decreased from probable/confirmed breeding to absent) SO00X - Mynydd Fochriw SO00D - Clwydyfagwr (Increased from absent to present/possible breeding) SO00I - Gellidaeg (Decreased from probable/confirmed breeding to present/possible breeding) SO00N - Pen-y-Darren (Unchanged probable/confirmed breeding) SO00T - Dowlais (Increased from absent to present/possible breeding) SO00Y - Rhaslas Pond (Increased from absent to present/possible breeding) SO00E - Penmoelallt (Increased from absent to present/possible breeding) SO00J - Trefechan SO00P - Gurnos (Increased from absent to present/possible breeding) SO00U - Pant (Increased from absent to present/possible breeding) SO00Z - Blaencarno (Increased from absent to present/possible breeding) SO01A - Llwyn-on Village SO01F - Darren Fach SO01K - Ponsticill SO01Q - Twynau Gwynion SO01V - Pen March (Increased from absent to present/possible breeding) SO01B - Llwyn-on Reservoir SO01G - Garn Ddu SO01L - Pontsticill Reservoir (Increased from absent to present/possible breeding) SO01R - Buarth y Caerau SO01C - Nant-ddu SO01H - Waun Wen SO10A - Blaen-nant-wen (Increased from absent to present/possible breeding) SO10F - Deri SO10K - Aberbargoed SO10B - Pen-y-bank (Increased from absent to present/possible breeding) SO10G - Coed Deri-Newydd (Increased from absent to present/possible breeding) SO10L - New Tredegar SO10C - Fochriw (Increased from absent to present/possible breeding) SO10H - Abertysswg SO10M - Mynydd Bedwellte (Increased from absent to present/possible breeding) SO10D - Rhymney SO10I - Twyn Abertyswg SO10E - Llechryd SO10J - Rhymney Hill SO11A - Tafarnaubach (Increased from absent to present/possible breeding) SO11B - Trefil Ddu SS77Y - Rest Bay SS77Z - Sker Point (Increased from absent to present/possible breeding) SS78V - Kenfig Pool (Increased from absent to present/possible breeding) SS78W - Kenfig Rivermouth (Increased from absent to present/possible breeding) SS87V - Traeth Bach (Increased from absent to present/possible breeding) SS87R - Southerndown (Decreased from probable/confirmed breeding to absent) SS87W - Dunraven (Decreased from probable/confirmed breeding to present/possible breeding) SS87M - Ogmore Rivermouth (Increased from absent to present/possible breeding) SS87S - Ogmore-by-Sea (Increased from absent to present/possible breeding) SS87X - St Brides Major (Increased from absent to present/possible breeding) SS87D - Porthcawl (Increased from absent to present/possible breeding) SS87I - Newton (Increased from absent to present/possible breeding) SS87N - Wig Fach (Increased from absent to present/possible breeding) SS87T - Candleston (Increased from absent to present/possible breeding) SS87Y - Ogmore (Increased from absent to present/possible breeding) SS87E - Nottage (Increased from absent to present/possible breeding) SS87J - Pant yr Hyl (Decreased from probable/confirmed breeding to present/possible breeding) SS87P - Tythegston (Increased from absent to present/possible breeding) SS87U - Laleston (Increased from absent to present/possible breeding) SS87Z - Broadlands (Increased from absent to present/possible breeding) SS88A - South Cornelly (Increased from absent to present/possible breeding) SS88F - North Cornelly (Increased from absent to present/possible breeding) SS88K - Stormy Down SS88Q - Llangewydd (Increased from absent to present/possible breeding) SS88V - Bryntirion (Increased from absent to present/possible breeding) SS88B - Llanmihangel (Increased from absent to present/possible breeding) SS88G - Pyle (Increased from absent to present/possible breeding) SS88L - Cefn Cribwr (Increased from absent to present/possible breeding) SS88R - Cefn Cross (Increased from absent to present/possible breeding) SS88W - Aberkenfig SS88M - Hafodheulog Wood SS88S - Mynydd Baedan SS88X - Tondu SS88N - Mynydd Ty-talwyn (Increased from absent to present/possible breeding) SS88T - Brynllywarch (Increased from absent to present/possible breeding) SS88Y - Shwt (Increased from absent to present/possible breeding) SS88J - Waun Lluest-wen SS88P - Llangynwyd SS88U - Cwmfelin (Increased from absent to present/possible breeding) SS88Z - Lletty Brongu SS89F - Mynydd Bach (Increased from absent to present/possible breeding) SS89K - Maesteg (Increased from absent to present/possible breeding) SS89Q - Garth (Increased from absent to present/possible breeding) SS89V - Moel Cynhordy SS89L - Nantyffyllon (Increased from absent to present/possible breeding) SS89R - Mynydd Pwll-yr-lwrch SS89W - Foel Gwilym Hywel SS89M - Caerau (Increased from absent to present/possible breeding) SS89S - Croeserw (Increased from absent to present/possible breeding) SS89X - Mynyd y Gelli (Increased from absent to present/possible breeding) SS96D - Nash Lighthouse (Increased from absent to present/possible breeding) SS96I - St Donat's Bay (Unchanged probable/confirmed breeding) SS96N - Col-huw Point (Increased from absent to present/possible breeding) SS96T - Stout Bay (Unchanged probable/confirmed breeding) SS96Y - Summerhouse Point (Decreased from probable/confirmed breeding to present/possible breeding) SS96E - Nash Point (Unchanged probable/confirmed breeding) SS96J - Marcross (Increased from absent to present/possible breeding) SS96P - Dimlands SS96U - Llantwit Major (Increased from absent to present/possible breeding) SS96Z - Eglwys-Brewis (Increased from absent to present/possible breeding) SS97A - Broughton (Decreased from probable/confirmed breeding to present/possible breeding) SS97F - Monkton (Increased from absent to present/possible breeding) SS97K - Bryn sych (Increased from absent to present/possible breeding) SS97Q - Siginston SS97V - Pen-y-Bryn SS97B - Tre-pit (Increased from absent to probable/confirmed breeding) SS97G - Wick (Increased from absent to present/possible breeding) SS97L - Llandow SS97R - Llandow Industrial Estate (Increased from absent to present/possible breeding) SS97W - Llandough (Increased from absent to present/possible breeding) SS97C - Castle-upon-Alun SS97H - Llampha (Increased from absent to present/possible breeding) SS97M - Colwinston (Increased from absent to present/possible breeding) SS97S - Pentre Meyrick SS97X - Cowbridge (Increased from absent to present/possible breeding) SS97D - Ewenny (Increased from absent to present/possible breeding) SS97I - Brocastle SS97N - Llangan SS97T - Penllyn SS97Y - Llansannor SS97E - Heronston (Increased from absent to present/possible breeding) SS97J - Waterton (Increased from absent to probable/confirmed breeding) SS97P - Treoes SS97U - Ruthin (Increased from absent to present/possible breeding) SS97Z - City SS98A - Brackla (Increased from absent to present/possible breeding) SS98F - Coity (Increased from absent to present/possible breeding) SS98K - Pencoed (Increased from absent to present/possible breeding) SS98Q - Felindre (Increased from absent to present/possible breeding) SS98V - Llanilid Opencast (Increased from absent to present/possible breeding) SS98B - Sarn (Increased from absent to present/possible breeding) SS98G - Cefn Hirgoed SS98L - Green Meadow (Increased from absent to probable/confirmed breeding) SS98R - Brynnau Gwynion (Increased from absent to present/possible breeding) SS98W - Brynna (Increased from absent to present/possible breeding) SS98C - Bryncethin (Increased from absent to present/possible breeding) SS98H - Heol-laethog SS98M - Heol-y-Cyw SS98S - Wern Tarw SS98X - Llanbad (Increased from absent to present/possible breeding) SS98D - Bettws (Increased from absent to present/possible breeding) SS98I - Blackmill (Increased from absent to present/possible breeding) SS98N - Glynogwr (Increased from absent to present/possible breeding) SS98T - Cwm Ogwr Fach (Increased from absent to present/possible breeding) SS98Y - Gelli'r haidd (Increased from absent to present/possible breeding) SS98E - Pont-y-rhyl (Increased from absent to present/possible breeding) SS98J - Lewistown (Increased from absent to present/possible breeding) SS98P - Cwm Dimbath (Increased from absent to present/possible breeding) SS98U - Evanstown (Increased from absent to present/possible breeding) SS98Z - Hendreforgan (Increased from absent to present/possible breeding) SS99A - Pontycymer SS99F - Ogmore Vale SS99K - Mynydd yr Aber SS99Q - Mynydd Maes-teg SS99V - Penygraig (Increased from absent to present/possible breeding) SS99B - Blaengarw SS99G - Nant-y-moel SS99L - Mynydd William Meyrick SS99R - Clydach Vale (Increased from absent to present/possible breeding) SS99W - Tonypandy (Increased from absent to present/possible breeding) SS99C - Werfa SS99H - Craig Ogwr SS99M - Bwlch y Clawdd (Increased from absent to present/possible breeding) SS99S - Ton Pentre (Increased from absent to present/possible breeding) SS99X - Ystrad Rhondda (Increased from absent to present/possible breeding) SS99D - Mynydd Blaenafan SS99I - Tarren Saerbren SS99N - Treorchy (Increased from absent to present/possible breeding) SS99T - Pentre (Increased from absent to present/possible breeding) SS99Y - Ferndale SS99E - Nant Gwair SS99J - Blaenrhondda SS99P - Treherbert SS99U - Maerdy SS99Z - Cwmaman ST06C - Limpert Bay ST06H - Breaksea Point (Increased from absent to probable/confirmed breeding) ST06M - Watch House Point ST06S - Rhoose Point (Increased from absent to present/possible breeding) ST06D - Gileston (Unchanged present/possible breeding) ST06I - Aberthaw (Increased from absent to probable/confirmed breeding) ST06N - Font-y-gary (Increased from absent to present/possible breeding) ST06T - Rhoose (Increased from absent to present/possible breeding) ST06Y - Porthkerry (Increased from absent to present/possible breeding) ST06E - RAF St Athan (Increased from absent to present/possible breeding) ST06J - Llancadle (Increased from absent to present/possible breeding) ST06P - Penmark ST06U - Curnix Farm ST06Z - Middleton Wood (Increased from absent to present/possible breeding) ST07A - St Mary Church (Increased from absent to present/possible breeding) ST07F - Coed y Colwyn ST07K - Llancarfan (Increased from absent to present/possible breeding) ST07Q - Walterston ST07V - Great Harriston (Increased from absent to present/possible breeding) ST07B - St Hilary (Increased from absent to present/possible breeding) ST07G - Tre-Aubrey ST07L - Llantrithyd (Increased from absent to present/possible breeding) ST07R - Bonvilston (south) ST07W - Dyffryn Gardens (Increased from absent to present/possible breeding) ST07C - Aberthin (Increased from absent to present/possible breeding) ST07H - Maes y Ward ST07M - Greenway (Increased from absent to present/possible breeding) ST07S - Bonvilston (north) (Increased from absent to present/possible breeding) ST07X - St Nicholas ST07D - Ystradowen (Increased from absent to present/possible breeding) ST07I - Welsh St Donats ST07N - Tre-Dodridge ST07T - Pendoylan (Increased from absent to present/possible breeding) ST07Y - Peterston-super-Ely ST07E - Tymaen ST07J - Keepers Lodge Farm ST07P - Hensol (Decreased from probable/confirmed breeding to absent) ST07U - Llwyngibbon ST07Z - Capel Llanilltern ST08A - Llanharry (Increased from absent to present/possible breeding) ST08F - Pontyclun (Increased from absent to present/possible breeding) ST08K - Miskin (Increased from absent to present/possible breeding) ST08Q - Groes-faen (Increased from absent to present/possible breeding) ST08V - Creigiau (Increased from absent to present/possible breeding) ST08B - Llanharan (Increased from absent to present/possible breeding) ST08G - Talbot Green (Increased from absent to probable/confirmed breeding) ST08L - Llantrisant (Increased from absent to probable/confirmed breeding) ST08R - Rhiwsaeson (Increased from absent to present/possible breeding) ST08W - Soar (Increased from absent to present/possible breeding) ST08C - Mynydd Meiros (Increased from absent to present/possible breeding) ST08H - Ynysmaerdy (Increased from absent to present/possible breeding) ST08M - Llantrisant Common ST08S - Beddau ST08X - Efail Isaf ST08D - Thomastown (Increased from absent to present/possible breeding) ST08I - Rhiwinder (Increased from absent to present/possible breeding) ST08N - Castellau (Increased from absent to present/possible breeding) ST08T - Upper Church Village (Increased from absent to present/possible breeding) ST08Y - Ton-teg (Increased from absent to present/possible breeding) ST08E - Tonyrefail (Increased from absent to present/possible breeding) ST08J - Mynydd y Glyn ST08P - Mynydd Gelliwion (Increased from absent to present/possible breeding) ST08U - Graig (Increased from absent to present/possible breeding) ST08Z - Rhydyfelin (Increased from absent to present/possible breeding) ST09A - Williamstown ST09F - Porth ST09K - Trehafod ST09Q - Pontypridd (Increased from absent to present/possible breeding) ST09V - Pont Sion Norton ST09B - Mynydd Brithweunydd ST09G - Ynyshir ST09L - Llysnant ST09R - Glyncoch ST09W - Cilfynydd (Increased from absent to present/possible breeding) ST09C - Tylorstown ST09H - Llanwonno ST09M - Ynysybwl ST09S - Carnetown ST09X - Abercynon ST09D - Blaenllechau ST09I - Darwonno (Increased from absent to present/possible breeding) ST09N - Perthcelyn ST09T - Ynysboeth (Increased from absent to present/possible breeding) ST09Y - Treharris ST09E - Coed Cae Aberaman ST09J - Fernhill ST09P - Mountain Ash ST09U - Merthyr Vale (Increased from absent to present/possible breeding) ST09Z - Cwm-Cothi ST16C - Friars Point ST16D - Barry Island (Increased from present/possible breeding to probable/confirmed breeding) ST16I - Barry Docks (Unchanged probable/confirmed breeding) ST16N - Sully Bay (Increased from absent to present/possible breeding) ST16T - Swanbridge (Increased from absent to present/possible breeding) ST16Y - St Mary's Well Bay (Increased from absent to present/possible breeding) ST16E - Barry (Decreased from probable/confirmed breeding to present/possible breeding) ST16J - Cadoxton (Unchanged present/possible breeding) ST16P - Sully (Increased from absent to probable/confirmed breeding) ST16U - Cosmeston Lakes Country Park (Increased from absent to present/possible breeding) ST16Z - Lavernock (Increased from absent to present/possible breeding) ST17A - Goldsland (Increased from absent to present/possible breeding) ST17F - St Andrews Major ST17K - Dinas Powys ST17Q - Penarth ST17V - Penarth Head (Increased from absent to present/possible breeding) ST17B - St Lythans (Increased from absent to present/possible breeding) ST17G - Wenvoe ST17L - Michaelston-le-Pit ST17R - Llandough (Increased from absent to present/possible breeding) ST17W - Cardiff Bay (Decreased from probable/confirmed breeding to present/possible breeding) ST17C - Drope ST17H - Culverhouse Cross ST17M - Leckwith (Increased from absent to present/possible breeding) ST17S - Grangetown (Unchanged probable/confirmed breeding) ST17X - Butetown (Decreased from probable/confirmed breeding to present/possible breeding) ST17D - Michaelston-super-Ely ST17I - Fairwater (Increased from absent to present/possible breeding) ST17N - Victoria Park (Unchanged probable/confirmed breeding) ST17T - Canton (Increased from absent to probable/confirmed breeding) ST17Y - Roath (Decreased from probable/confirmed breeding to present/possible breeding) ST17E - Stockland ST17J - Danescourt ST17P - Llandaff North (Unchanged present/possible breeding) ST17U - Gabalfa (Increased from absent to present/possible breeding) ST17Z - Roath Park (Increased from absent to present/possible breeding) ST18A - Pentyrch ST18F - Radyr (Increased from absent to present/possible breeding) ST18K - Coryton (Increased from absent to present/possible breeding) ST18Q - Llanishen (Increased from present/possible breeding to probable/confirmed breeding) ST18V - Cyncoed (Increased from absent to present/possible breeding) ST18B - Gwaelod-y-garth (Increased from absent to present/possible breeding) ST18G - Taff's Well ST18L - Coed-y-wenallt (Increased from absent to present/possible breeding) ST18R - Thornhill (Increased from absent to present/possible breeding) ST18W - Lisvane (Increased from absent to present/possible breeding) ST18C - Coed y Gedrys (Increased from absent to present/possible breeding) ST18H - Nantgarw (Increased from absent to present/possible breeding) ST18M - Caerphilly Common (Increased from absent to present/possible breeding) ST18S - Wern Ddu (Increased from absent to present/possible breeding) ST18X - Coed Coesau whips (Increased from absent to present/possible breeding) ST18D - Upper Boat (Increased from absent to present/possible breeding) ST18I - Groes-wen (Increased from absent to present/possible breeding) ST18N - Caerphilly (Increased from absent to present/possible breeding) ST18T - Van (Increased from absent to present/possible breeding) ST18Y - Rudry ST18E - Abertridwr ST18J - Penyrheol (Increased from absent to present/possible breeding) ST18P - Energlyn (Increased from absent to present/possible breeding) ST18U - Bedwas (Increased from absent to present/possible breeding) ST18Z - Graig-y-Rhacca ST19A - Senghenydd ST19F - Cefn-llwyd ST19K - Llanbradach ST19B - Llanfabon ST19G - Mynydd Eglwsilan ST19L - Ystrd Mynach ST19C - Nelson (Increased from absent to present/possible breeding) ST19H - Parc Penallta Country Park ST19M - Hengoed (Increased from absent to present/possible breeding) ST19D - Trelewis ST19I - Gelligaer (Increased from absent to present/possible breeding) ST19N - Pengam ST19E - Taff Bargoed Country Park (Increased from absent to present/possible breeding) ST19J - Gelli-gaer Common ST19P - Bargoed ST26C - Flatholm ST26H - Flatholm (Decreased from probable/confirmed breeding to present/possible breeding) ST27C - East Moors (Decreased from probable/confirmed breeding to present/possible breeding) ST27H - Cardiff Flats ST27D - Tremorfa (Decreased from probable/confirmed breeding to present/possible breeding) ST27I - Lamby (Increased from absent to probable/confirmed breeding) ST27N - Rumney Great Wharf ST27E - Rumney (Unchanged present/possible breeding) ST27J - Pwll Mawr (Unchanged present/possible breeding) ST27P - Sluice Farm (Increased from absent to present/possible breeding) ST28A - Llanedeyrn (Increased from absent to present/possible breeding) ST28F - Llanrumney (Decreased from present/possible breeding to absent) ST28K - St Mellons (Increased from absent to present/possible breeding) ST28B - Cardiff Gate (Increased from absent to present/possible breeding) ST28G - Began (Increased from absent to present/possible breeding) ST28C - Cefn Mably Woods (Increased from absent to present/possible breeding) ST28H - Bridge Farm ST28M - Michaelston-y-Fedw ST28D - Coed Cefn-pwll-du ST28I - Draethen (Increased from absent to present/possible breeding) ST28N - Rhiwderin ST28E - Machen ST28J - Upper Ochrwyth

Gains and improvements

Status

Tetrads


Absent to present/possible

191


Present/possible to probable/confirmed

2


Absent to probable/confirmed

12


No change

Status

Tetrads


Present/possible

6


Probable/confirmed

7


Losses and declines

Status

Tetrads


Present/possible to absent

1


Probable/confirmed to present/possible

15


Probable/confirmed to absent

4