Black-headed Gull

Larus ridibundus

 

 

SP81W - Buckland SP81S - Draytonmead Farm SP81X - Long Marston SP81T - Thistlebrook Farm SP81Y - Alnwick Farm SP81Z - Crafton SP90V - Meadhams Farm SP90W - Orchard Leigh SP90X - Whelpley Hill Farm SP90I - Cholesbury SP90N - Hawridge Common SP90T - Hockeridge Wood SP90Y - Berkhamsted S SP90E - Spencersgreen SP90J - Hastoe SP90P - Champneys SP90U - Northchurch SP90Z - Berkhamsted N SP91A - Tring W SP91F - Tring E SP91K - New Ground SP91Q - Norcott Hill SP91V - Berkhamsted Common SP91B - Little Tring SP91G - New Mill SP91L - Aldbury Nowers SP91R - Aldbury SP91W - Little Gaddesden SP91C - Wilstone SP91H - College Lake SP91M - Pitstone Hill SP91X - Ringshall SP91D - West End Farm SP91E - Mentmore TL00A - Flaunden TL00F - Belsize TL00K - Chipperfield TL00Q - Berrybushes Wood TL00V - Abbots Langley TL00B - Bovingdon TL00G - Bulstrode TL00L - Whippendell Bottom TL00R - Kings Langley TL00W - Bedmond TL00C - Bovingdon Airfield TL00H - Westbrook Hay TL00M - Apsley TL00S - Nash Mills TL00X - Pimlico TL00D - Broadway Farm TL00I - Chaulden TL00N - Hemel Hempstead TL00T - Adeyfield TL00Y - Leverstock Green TL00E - Potten End TL00J - Boxted Farm TL00P - Gadebridge TL00U - Grovehill TL00Z - Buncefield TL01A - Nettleden TL01F - Great Gaddesden TL01K - Briden's Camp TL01Q - Easbrookhay Farm TL01V - The Aubreys TL01B - Hudnall TL01G - Widmore Farm TL01L - Gaddesden Row TL01R - Puddephat's Farm TL01W - Rabbitfield Spring TL01C - Studhamhall Farm TL01H - Clement's End TL01M - Beechwood House TL01S - Flamstead TL01X - Friar's Wash TL01I - Dedmansey Wood TL01N - Markyate W TL01T - Markyate E TL01Y - Pepsal End TL01P - Kensworth Lynch TL01U - Caddington TL01Z - Slip End TL02Y - Galley Hill TL02Z - Barton Hill Farm TL03V - Barton-le-Clay TL10A - Kingswood TL10F - Bricket Wood Common TL10K - Netherwylde Farm TL10Q - Harperbury TL10V - Shenley TL10B - M25 Junction 21 TL10G - Blackgreen Wood TL10L - Frogmore TL10R - Broad Colney TL10W - Salisbury Hall TL10C - Potters Crouch TL10H - Chiswell Green TL10M - St Julians TL10S - London Colney N TL10X - Tyttenhanger TL10D - Gorhambury TL10I - Praewood Farm TL10N - St Albans TL10T - Fleetville TL10Y - Smallford TL10E - Hogg End TL10J - Batchwood Hall TL10P - New Greens and Townsend TL10U - Marshalswick TL10Z - Beech Farm TL11A - Beaumont Hall TL11F - Hedge's Farm TL11K - Cheapside Farm TL11Q - Sandridge TL11V - Symonshyde Great Wood TL11B - Harpendenbury TL11G - Hatching Green TL11L - Harpenden SE TL11R - Nomansland TL11W - Coleman Green TL11C - Faulkners End Farm TL11H - Harpenden NW TL11M - Batford TL11S - Marshalls Heath TL11X - Bride Hall TL11D - West Hyde TL11I - East Hyde TL11N - Bower Heath TL11T - Blackmore End TL11Y - Ayot St Lawrence TL11J - Chiltern Green TL11P - Ansells End TL11U - Kimpton TL11Z - Kimpton Mill TL12F - Luton Airport TL12K - Diamond End TL12Q - Bendish TL12V - Whitwell TL12B - Stopsley TL12G - Tea Green TL12L - The Heath TL12R - Kingswalden Park TL12W - Hitch Wood TL12C - Butterfield Green TL12H - Lilley Bottom TL12M - Ley Green TL12S - Preston TL12X - Poynders End TL12D - Lilley TL12I - The Flints TL12N - Great Offley TL12T - Offleyholes Farm TL12Y - Gosmore TL12E - Telegraph Hill TL12J - Little Offley TL12P - Gravehill Plantation TL12U - Hitchin SW TL12Z - Hitchin Hill TL13A - Hexton TL13F - Tingley Wood TL13K - Pirton TL13Q - Oughtonhead Common TL13V - Ickleford TL13B - Higham Gobion TL13G - Apsley End TL13L - Burge End TL13R - Holwell TL13W - Ickleford Common TL13S - Holwellbury TL13X - Arlesey TL20A - Ridge TL20F - South Mimms TL20K - Potters Bar TL20Q - Five Acre Wood TL20V - Barvin Park TL20B - Redwell Wood Farm TL20G - Royal Veterinary College TL20L - Swanley Bar TL20R - Queenswood TL20W - Northaw TL20C - North Mymms Park TL20H - Welham Green TL20M - Bell Bar TL20S - Kentish Lane Farm TL20X - Great Wood County Park TL20D - Roehyde TL20I - South Hatfield TL20N - Woodside TL20T - Wildhill TL20Y - Little Berkhamsted TL20E - Hatfield Aerodrome TL20J - Birchwood TL20P - Home Park TL20U - Essendon TL20Z - Howe Green TL21A - Cromerhyde Farm TL21F - Stanborough TL21K - Hatfield Hyde TL21Q - Holwell Court Farm TL21V - Letty Green TL21B - Brocket Park TL21G - Sherrardspark TL21L - Peartree TL21R - Panshanger Aerodrome TL21W - Panshanger Stables TL21C - Ayot St Peter TL21H - Digswell Park TL21M - Digswell TL21S - Tewin TL21X - Bramfield TL21D - Pulmer Water TL21I - Welwyn TL21N - Harmergreen Wood TL21T - Bull's Green TL21Y - Bramfield Woods TL21E - Codicote TL21J - Tagmore Green TL21P - Woolmer Green TL21U - Datchworth TL21Z - Watkin's Hall Farm TL22A - Rusling End TL22F - Old Knebworth TL22K - Knebworth TL22Q - Bragbury End TL22V - Frogmore Hall TL22B - Langley Bottom TL22G - Norton Green TL22L - Broadwater TL22R - Aston TL22W - Benington Lordship TL22C - Almshoe Bury TL22H - Stevenage Old Town TL22M - Pin Green TL22S - Chells Manor TL22X - Walkern Lodge TL22D - Titmore Green TL22I - Lister Hospital TL22N - Chesfield Park TL22T - Boxbury Farm TL22Y - Walkern TL22E - Great Wymondley TL22J - Rowley Court TL22P - Damask Green TL22U - Hall's Green TL22Z - Cromer TL23A - Letchworth Hall Hotel TL23F - Willian TL23K - Lannock Manor TL23Q - Weston TL23V - Kingswoodbury TL23B - Letchworth West TL23G - Letchworth East TL23L - Baldock TL23R - Bird Hill TL23W - Wallington TL23C - Letchworth Sewage Works TL23H - Norton and Radwell TL23M - Bygrave Common TL23S - The Firs TL23X - Bygrave Lodge Farm TL23I - A1(M) Junction 10 TL23N - Newnham TL23T - Bygrave TL23Y - Slip End TL23J - Caldecote TL23P - Newnham Hill TL23U - Ashwell TL23Z - Ashwell and Morden Station TL24F - Hinxworth TL24K - Ashwell End TL24Q - Cold Harbour TL24V - Gatley TL24L - Dunton Lodge Farm TL24R - Guilden Morden S TL24S - Guilden Morden N TL30A - Cattlegate Farm TL30F - Theobalds Manor TL30K - Theobalds Park TL30Q - Bowyers Water TL30B - Cuffley TL30G - Goff's Oak TL30L - Flamstead End TL30R - Seventy Acres Lake TL30C - Newgate Street TL30H - Hammond Street TL30M - Wormleybury TL30S - Turnford TL30D - Blackfan Wood TL30I - Cowheath Wood TL30N - Carneles Green TL30T - Broxbourne TL30Y - Nazeing Mead TL30E - Bayford TL30J - Monks Green TL30P - Goose Green TL30U - Hoddesdon TL30Z - Rye House Station TL31A - Bayfordbury TL31F - Brickendonbury TL31K - Hertford Heath TL31Q - St Margarets TL31V - Stanstead Abbotts TL31B - Hertford North Station TL31G - Hertford TL31L - Rush Green TL31R - Great Amwell TL31W - Little Briggens TL31C - Waterford TL31H - Ware Park Farm TL31M - Ware TL31S - Great Cozens TL31X - Wareside TL31D - Stapleford TL31I - Tonwell TL31N - Wadesmill TL31T - Fabdens TL31Y - Bakers End TL31E - Watton at Stone TL31J - Sacombe TL31P - Sacombe Green TL31U - High Cross TL31Z - Barwick TL32A - Whempstead TL32F - Dane End TL32K - Potter's Green TL32Q - Colliers End TL32V - Latchford TL32B - Burn's Green TL32G - Haultwick TL32L - Levens Green TL32R - Old Hall Green TL32W - Standon TL32C - Clay End TL32H - Wood End TL32M - Great Munden TL32S - Hamels Park TL32X - Braughing TL32D - Ardeley TL32I - Moor Green TL32N - Whatbarn Farm TL32T - Westmill TL32Y - Dassels TL32E - Bancroft Farm TL32J - Cottered TL32P - Aspenden Hall TL32U - Buntingford TL32Z - Hare Street TL33A - Rushden TL33F - Broadfield Hall TL33K - Little Butter Hill TL33Q - Wyddial TL33V - Silkmead Farm TL33B - Roe Green TL33G - Green End TL33L - Buckland Bottom TL33R - Capons Wood TL33W - Cave Gate TL33C - Wheat Hill TL33H - Philpott's Wood TL33M - The Homestead TL33S - Strawberry Grove TL33X - Barkway TL33D - Crouch Hill TL33I - Kelshall TL33N - Reed End TL33T - Reed TL33Y - Newsells TL33E - Lower Coombe Farm TL33J - Church Hill TL33P - Mile End Farm TL33U - Whiteley Hill TL33Z - Barley TL34F - Highfield Farm TL34K - Royston W TL34Q - Royston E TL34V - Noon's Folly Farm TL34L - Beauval Farm TL34R - Holland Hall TL41A - Briggens Park TL41F - Eastwick TL41K - Harlow Town Station TL41B - Hunsdonbury TL41G - Eastwick Hall Farm TL41L - Gilston Park TL41R - Rowney Farm TL41W - Durrington Hall TL41C - Hunsdon TL41H - Hunsdon Lodge Farm TL41M - Stonards TL41S - High Wych TL41X - Sawbridgeworth TL41D - Little Blakesware TL41I - Perry Green TL41N - Allen's Green TL41T - Trims Green TL41Y - Spellbrook TL41E - Kettle Green TL41J - Much Hadham TL41P - Green Tye TL41U - Thorley TL41Z - Thorley Street TL42A - Bromley TL42F - Hadham Ford TL42K - Bury Green TL42Q - Stortford Park TL42V - Bishop's Stortford TL42B - Wellpond Green TL42G - Albury End TL42L - Hadham Hall TL42R - Wickham Hall TL42W - Foxdells Farm TL42C - Braughing Friars TL42H - Albury TL42M - Clapgate TL42S - Farnham TL42X - Hazel End TL42D - Bozen Green TL42I - Furneux Pelham TL42N - Hixham Hall TL42T - Mallows Green TL42E - Little Hormead TL42J - Whitebarns TL42P - Stocking Pelham TL43A - Brick House Farm TL43F - Brent Pelham TL43K - Starling's Green TL43B - Anstey TL43G - Meesden TL43L - Further Ford End TL43C - Nuthampstead TL43H - Langley Lawn TL43D - Abbotsbury Farm TL43I - Chrishall Common TL43E - Chishall Windmill TL44A - Clay Hill TL51C - Gladwyns TL52A - Start Hill TL52F - Tilekiln Green TL52B - Birchanger TL52C - Stansted Mountfitchet TQ09A - Chalfont St Peter TQ09F - West Hyde TQ09K - Harefield TQ09Q - Battlers Wells Farm TQ09V - Northwood TQ09B - Chalfont Common TQ09G - Maple Cross TQ09L - Stocker's Lake TQ09R - Batchworth Heath TQ09W - Moor Park TQ09C - Chorleywood West TQ09H - Chorleywood Bottom TQ09M - Rickmansworth TQ09S - Croxley Green TQ09X - Holywell TQ09I - Chorleywood Common TQ09N - Loudwater TQ09T - Whippendell Wood TQ09Y - Cassiobury Park TQ09E - Chenies TQ09J - Sarratt Bottom TQ09P - Sarratt TQ09U - Chandler's Cross TQ09Z - Leavesden Green TQ19A - Pinnerwood Park TQ19B - Oxhey Wood TQ19G - Carpenders Park TQ19L - Bentley Priory TQ19C - Oxhey TQ19H - Bushey TQ19M - Bushey Heath TQ19S - Aldenham Reservoir TQ19X - Edgewarebury TQ19D - Watford TQ19I - Bushey Hall TQ19N - Letchmore Heath TQ19T - Aldenham Park TQ19Y - Borehamwood TQ19E - North Watford TQ19J - M1 Junction 5 TQ19P - Batlers Green TQ19U - Radlett TQ19Z - Kitwells Farm TQ29C - Sterling Corner TQ29D - Rowley Green TQ29I - Galley Lane Farm TQ29N - High Barnet TQ29E - Buckettsland Farm TQ29J - Dancers Hill TQ29P - Wrotham Park TQ29U - Hadley Wood TQ39U - Enfield Lock Major towns Important bird sites 10km Square IDs

First Breeding Atlas

Status

Tetrads


Possible

0


Probable

0


Confirmed

0


Total

0


Second Breeding Atlas

Status

Tetrads


Possible

0


Probable

0


Confirmed

0


Total

0


New Breeding Atlas

Status

Tetrads


Possible

1


Probable

2


Confirmed

3


Total

6


Not surveyed

307