Jackdaw / Jac-y-do

Corvus monedula

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Contains Ordnance Survey data
© Crown copyright and database right 2013

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

Distribution map species lists

Breeding change maps

Species richness maps

© 2014 Glamorgan Bird Club

Breeding 1968-72

Status

Hectads


Possible

0


Probable

0


Confirmed

17

100%


Total

17

100%


Winter 1981/82-1983/84

Status

Hectads


Present

17

100%


Breeding 1984-89

Status

Tetrads


Present

0


Possible

35

9%


Probable

50

12%


Confirmed

272

67%


Total

357

88%


Winter 2007/08-2010/11

Status

Tetrads


Present

345

85%


Breeding 2008-11

Status

Tetrads


Present

52

13%


Possible

70

17%


Probable

70

17%


Confirmed

129

32%


Total

321

79%