House Martin

Delichon urbica

 

 

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

51


Probable

37


Confirmed

356


Total

444


Second Breeding Atlas

Status

Tetrads


Possible

75


Probable

50


Confirmed

341


Total

466


New Breeding Atlas

Status

Tetrads


Possible

48


Probable

36


Confirmed

56


Total

140


Not surveyed

275