Hertfordshire Bird Atlas Abundance Map

Wren

Troglodytes troglodytes

SP81W - Buckland (9.50)

SP81S - Draytonmead Farm (3.75)

SP81X - Long Marston (6.00)

SP81T - Thistlebrook Farm (4.00)

SP81Y - Alnwick Farm (1.50)

SP81Z - Crafton (0.50)

SP90V - Meadhams Farm (10.50)

SP90W - Orchard Leigh (7.00)

SP90X - Whelpley Hill Farm (0.67)

SP90I - Cholesbury (10.75)

SP90N - Hawridge Common (14.00)

SP90T - Hockeridge Wood (6.50)

SP90Y - Berkhamsted S (2.00)

SP90E - Spencersgreen (1.50)

SP90J - Hastoe (3.50)

SP90P - Champneys (8.50)

SP90U - Northchurch (4.25)

SP90Z - Berkhamsted N (10.00)

SP91A - Tring W ()

SP91F - Tring E (8.00)

SP91K - New Ground (5.50)

SP91Q - Norcott Hill (2.50)

SP91V - Berkhamsted Common (8.00)

SP91B - Little Tring (3.50)

SP91G - New Mill (10.33)

SP91L - Aldbury Nowers (12.50)

SP91R - Aldbury (4.75)

SP91W - Little Gaddesden (5.00)

SP91C - Wilstone (6.75)

SP91H - College Lake (5.00)

SP91M - Pitstone Hill (3.75)

SP91X - Ringshall (3.25)

SP91D - West End Farm (3.25)

SP91E - Mentmore (6.00)

TL00A - Flaunden (2.75)

TL00F - Belsize (6.50)

TL00K - Chipperfield (3.50)

TL00Q - Berrybushes Wood (3.00)

TL00V - Abbots Langley (6.00)

TL00B - Bovingdon (7.25)

TL00G - Bulstrode (3.50)

TL00L - Whippendell Bottom (1.50)

TL00R - Kings Langley (9.50)

TL00W - Bedmond (1.75)

TL00C - Bovingdon Airfield (3.75)

TL00H - Westbrook Hay (1.50)

TL00M - Apsley (0.67)

TL00S - Nash Mills (5.75)

TL00X - Pimlico (1.00)

TL00D - Broadway Farm (10.75)

TL00I - Chaulden (3.25)

TL00N - Hemel Hempstead (9.00)

TL00T - Adeyfield (6.50)

TL00Y - Leverstock Green (3.00)

TL00E - Potten End (6.25)

TL00J - Boxted Farm (10.00)

TL00P - Gadebridge (6.25)

TL00U - Grovehill (9.75)

TL00Z - Buncefield (6.75)

TL01A - Nettleden (2.50)

TL01F - Great Gaddesden (5.00)

TL01K - Briden's Camp (3.75)

TL01Q - Easbrookhay Farm (5.50)

TL01V - The Aubreys (2.00)

TL01B - Hudnall (5.25)

TL01G - Widmore Farm (8.25)

TL01L - Gaddesden Row (2.00)

TL01R - Puddephat's Farm (9.25)

TL01W - Rabbitfield Spring (2.00)

TL01C - Studhamhall Farm (0.50)

TL01H - Clement's End (0.33)

TL01M - Beechwood House (1.67)

TL01S - Flamstead (6.50)

TL01X - Friar's Wash (2.00)

TL01I - Dedmansey Wood (3.50)

TL01N - Markyate W (3.25)

TL01T - Markyate E (5.00)

TL01Y - Pepsal End (8.50)

TL01P - Kensworth Lynch (4.50)

TL01U - Caddington (7.00)

TL01Z - Slip End (3.50)

TL02Y - Galley Hill (1.75)

TL02Z - Barton Hill Farm (1.50)

TL03V - Barton-le-Clay (4.75)

TL10A - Kingswood (4.75)

TL10F - Bricket Wood Common (7.50)

TL10K - Netherwylde Farm (2.50)

TL10Q - Harperbury (4.50)

TL10V - Shenley (4.00)

TL10B - M25 Junction 21 (4.25)

TL10G - Blackgreen Wood (2.50)

TL10L - Frogmore (1.00)

TL10R - Broad Colney (3.75)

TL10W - Salisbury Hall (3.00)

TL10C - Potters Crouch (2.25)

TL10H - Chiswell Green (3.75)

TL10M - St Julians (4.50)

TL10S - London Colney N (6.25)

TL10X - Tyttenhanger (4.50)

TL10D - Gorhambury (2.75)

TL10I - Praewood Farm (3.50)

TL10N - St Albans (6.00)

TL10T - Fleetville (5.00)

TL10Y - Smallford (5.50)

TL10E - Hogg End (1.00)

TL10J - Batchwood Hall (5.50)

TL10P - New Greens and Townsend (5.75)

TL10U - Marshalswick (2.75)

TL10Z - Beech Farm (3.50)

TL11A - Beaumont Hall (3.25)

TL11F - Hedge's Farm (0.50)

TL11K - Cheapside Farm (2.25)

TL11Q - Sandridge (2.50)

TL11V - Symonshyde Great Wood (1.75)

TL11B - Harpendenbury (5.50)

TL11G - Hatching Green (10.50)

TL11L - Harpenden SE (4.75)

TL11R - Nomansland (8.50)

TL11W - Coleman Green (1.25)

TL11C - Faulkners End Farm (2.00)

TL11H - Harpenden NW (5.75)

TL11M - Batford (16.75)

TL11S - Marshalls Heath (8.50)

TL11X - Bride Hall (5.75)

TL11D - West Hyde (7.50)

TL11I - East Hyde (5.00)

TL11N - Bower Heath (7.50)

TL11T - Blackmore End (11.00)

TL11Y - Ayot St Lawrence (3.50)

TL11J - Chiltern Green (5.00)

TL11P - Ansells End (3.00)

TL11U - Kimpton (1.67)

TL11Z - Kimpton Mill (3.50)

TL12F - Luton Airport (1.25)

TL12K - Diamond End (3.50)

TL12Q - Bendish (8.00)

TL12V - Whitwell (2.25)

TL12B - Stopsley (0.50)

TL12G - Tea Green (1.75)

TL12L - The Heath (3.75)

TL12R - Kingswalden Park (3.25)

TL12W - Hitch Wood (11.00)

TL12C - Butterfield Green (4.50)

TL12H - Lilley Bottom ()

TL12M - Ley Green ()

TL12S - Preston (7.00)

TL12X - Poynders End (1.50)

TL12D - Lilley (1.50)

TL12I - The Flints (3.75)

TL12N - Great Offley (1.25)

TL12T - Offleyholes Farm (3.25)

TL12Y - Gosmore (3.75)

TL12E - Telegraph Hill (1.50)

TL12J - Little Offley (3.50)

TL12P - Gravehill Plantation (0.25)

TL12U - Hitchin SW (1.25)

TL12Z - Hitchin Hill (0.67)

TL13A - Hexton (7.50)

TL13F - Tingley Wood (5.00)

TL13K - Pirton (0.50)

TL13Q - Oughtonhead Common (4.25)

TL13V - Ickleford (2.25)

TL13B - Higham Gobion (3.50)

TL13G - Apsley End (8.00)

TL13L - Burge End (1.25)

TL13R - Holwell (1.25)

TL13W - Ickleford Common (3.50)

TL13S - Holwellbury (0.25)

TL13X - Arlesey (3.00)

TL20A - Ridge (2.25)

TL20F - South Mimms (3.00)

TL20K - Potters Bar (0.50)

TL20Q - Five Acre Wood (4.00)

TL20V - Barvin Park (7.00)

TL20B - Redwell Wood Farm (2.00)

TL20G - Royal Veterinary College (10.25)

TL20L - Swanley Bar (13.25)

TL20R - Queenswood (4.50)

TL20W - Northaw (13.50)

TL20C - North Mymms Park (4.00)

TL20H - Welham Green (6.00)

TL20M - Bell Bar (2.50)

TL20S - Kentish Lane Farm (9.50)

TL20X - Great Wood County Park (14.00)

TL20D - Roehyde (9.00)

TL20I - South Hatfield (11.25)

TL20N - Woodside (14.25)

TL20T - Wildhill (10.00)

TL20Y - Little Berkhamsted (9.00)

TL20E - Hatfield Aerodrome (3.50)

TL20J - Birchwood (12.75)

TL20P - Home Park (18.50)

TL20U - Essendon (12.50)

TL20Z - Howe Green (11.50)

TL21A - Cromerhyde Farm (6.25)

TL21F - Stanborough (1.75)

TL21K - Hatfield Hyde (3.25)

TL21Q - Holwell Court Farm (2.50)

TL21V - Letty Green (1.50)

TL21B - Brocket Park (5.25)

TL21G - Sherrardspark (26.00)

TL21L - Peartree (5.75)

TL21R - Panshanger Aerodrome (3.50)

TL21W - Panshanger Stables (1.00)

TL21C - Ayot St Peter (2.75)

TL21H - Digswell Park (3.50)

TL21M - Digswell (7.25)

TL21S - Tewin (3.50)

TL21X - Bramfield (4.50)

TL21D - Pulmer Water ()

TL21I - Welwyn (0.50)

TL21N - Harmergreen Wood (10.75)

TL21T - Bull's Green ()

TL21Y - Bramfield Woods (2.50)

TL21E - Codicote (0.50)

TL21J - Tagmore Green (6.50)

TL21P - Woolmer Green (9.00)

TL21U - Datchworth (5.75)

TL21Z - Watkin's Hall Farm (6.50)

TL22A - Rusling End (0.67)

TL22F - Old Knebworth ()

TL22K - Knebworth (3.50)

TL22Q - Bragbury End (3.67)

TL22V - Frogmore Hall (0.25)

TL22B - Langley Bottom (0.50)

TL22G - Norton Green (2.75)

TL22L - Broadwater ()

TL22R - Aston (0.75)

TL22W - Benington Lordship (1.25)

TL22C - Almshoe Bury (2.75)

TL22H - Stevenage Old Town (1.50)

TL22M - Pin Green (1.75)

TL22S - Chells Manor (3.50)

TL22X - Walkern Lodge ()

TL22D - Titmore Green (5.75)

TL22I - Lister Hospital (0.50)

TL22N - Chesfield Park (2.50)

TL22T - Boxbury Farm (0.75)

TL22Y - Walkern (1.50)

TL22E - Great Wymondley (1.50)

TL22J - Rowley Court (6.75)

TL22P - Damask Green (3.00)

TL22U - Hall's Green (1.75)

TL22Z - Cromer ()

TL23A - Letchworth Hall Hotel (6.75)

TL23F - Willian (4.00)

TL23K - Lannock Manor (3.25)

TL23Q - Weston (8.67)

TL23V - Kingswoodbury (2.50)

TL23B - Letchworth West (0.25)

TL23G - Letchworth East (6.25)

TL23L - Baldock (4.50)

TL23R - Bird Hill (2.25)

TL23W - Wallington (6.25)

TL23C - Letchworth Sewage Works (3.50)

TL23H - Norton and Radwell (4.75)

TL23M - Bygrave Common (4.75)

TL23S - The Firs ()

TL23X - Bygrave Lodge Farm (1.00)

TL23I - A1(M) Junction 10 (3.50)

TL23N - Newnham ()

TL23T - Bygrave (4.00)

TL23Y - Slip End (0.25)

TL23J - Caldecote (1.75)

TL23P - Newnham Hill (4.50)

TL23U - Ashwell (2.00)

TL23Z - Ashwell and Morden Station (6.00)

TL24F - Hinxworth (2.00)

TL24K - Ashwell End (3.00)

TL24Q - Cold Harbour (2.50)

TL24V - Gatley (5.50)

TL24L - Dunton Lodge Farm (0.75)

TL24R - Guilden Morden S (8.00)

TL24S - Guilden Morden N (0.50)

TL30A - Cattlegate Farm (5.00)

TL30F - Theobalds Manor (7.25)

TL30K - Theobalds Park (10.00)

TL30Q - Bowyers Water (2.00)

TL30B - Cuffley (8.50)

TL30G - Goff's Oak (4.25)

TL30L - Flamstead End (10.00)

TL30R - Seventy Acres Lake (11.67)

TL30C - Newgate Street (1.50)

TL30H - Hammond Street (12.25)

TL30M - Wormleybury (9.00)

TL30S - Turnford (1.50)

TL30D - Blackfan Wood (9.00)

TL30I - Cowheath Wood (10.00)

TL30N - Carneles Green (9.00)

TL30T - Broxbourne (12.50)

TL30Y - Nazeing Mead (32.00)

TL30E - Bayford (1.33)

TL30J - Monks Green (7.00)

TL30P - Goose Green (5.50)

TL30U - Hoddesdon (10.00)

TL30Z - Rye House Station (12.50)

TL31A - Bayfordbury (1.50)

TL31F - Brickendonbury (4.25)

TL31K - Hertford Heath (7.50)

TL31Q - St Margarets (3.75)

TL31V - Stanstead Abbotts (11.00)

TL31B - Hertford North Station (16.00)

TL31G - Hertford (4.25)

TL31L - Rush Green (12.50)

TL31R - Great Amwell (14.00)

TL31W - Little Briggens (10.00)

TL31C - Waterford (2.00)

TL31H - Ware Park Farm (3.75)

TL31M - Ware (2.75)

TL31S - Great Cozens (3.75)

TL31X - Wareside (14.25)

TL31D - Stapleford (2.75)

TL31I - Tonwell (6.00)

TL31N - Wadesmill (7.00)

TL31T - Fabdens (10.00)

TL31Y - Bakers End (4.00)

TL31E - Watton at Stone (9.75)

TL31J - Sacombe (7.00)

TL31P - Sacombe Green (16.50)

TL31U - High Cross (3.50)

TL31Z - Barwick (5.75)

TL32A - Whempstead (1.25)

TL32F - Dane End (2.00)

TL32K - Potter's Green (4.25)

TL32Q - Colliers End (5.00)

TL32V - Latchford (9.50)

TL32B - Burn's Green (2.00)

TL32G - Haultwick (1.25)

TL32L - Levens Green (6.25)

TL32R - Old Hall Green (2.50)

TL32W - Standon (4.75)

TL32C - Clay End (2.50)

TL32H - Wood End (3.00)

TL32M - Great Munden (3.75)

TL32S - Hamels Park (6.00)

TL32X - Braughing (6.25)

TL32D - Ardeley (1.75)

TL32I - Moor Green (8.67)

TL32N - Whatbarn Farm (4.75)

TL32T - Westmill (5.50)

TL32Y - Dassels (2.75)

TL32E - Bancroft Farm (4.25)

TL32J - Cottered (4.25)

TL32P - Aspenden Hall (3.25)

TL32U - Buntingford (3.50)

TL32Z - Hare Street (2.50)

TL33A - Rushden (3.50)

TL33F - Broadfield Hall (0.50)

TL33K - Little Butter Hill (3.50)

TL33Q - Wyddial (3.00)

TL33V - Silkmead Farm (4.75)

TL33B - Roe Green (0.50)

TL33G - Green End (0.50)

TL33L - Buckland Bottom (1.25)

TL33R - Capons Wood (1.75)

TL33W - Cave Gate (4.75)

TL33C - Wheat Hill ()

TL33H - Philpott's Wood (3.25)

TL33M - The Homestead (2.25)

TL33S - Strawberry Grove (1.00)

TL33X - Barkway (3.50)

TL33D - Crouch Hill (1.00)

TL33I - Kelshall (3.75)

TL33N - Reed End ()

TL33T - Reed (0.25)

TL33Y - Newsells (0.75)

TL33E - Lower Coombe Farm (0.75)

TL33J - Church Hill (3.25)

TL33P - Mile End Farm (4.25)

TL33U - Whiteley Hill (4.00)

TL33Z - Barley (3.50)

TL34F - Highfield Farm (1.50)

TL34K - Royston W (1.00)

TL34Q - Royston E (4.00)

TL34V - Noon's Folly Farm (3.50)

TL34L - Beauval Farm (1.25)

TL34R - Holland Hall (2.33)

TL41A - Briggens Park (13.25)

TL41F - Eastwick (1.00)

TL41K - Harlow Town Station (0.50)

TL41B - Hunsdonbury (7.00)

TL41G - Eastwick Hall Farm (6.00)

TL41L - Gilston Park (12.25)

TL41R - Rowney Farm (1.00)

TL41W - Durrington Hall (9.50)

TL41C - Hunsdon (8.25)

TL41H - Hunsdon Lodge Farm (2.50)

TL41M - Stonards (0.25)

TL41S - High Wych (7.50)

TL41X - Sawbridgeworth (11.00)

TL41D - Little Blakesware (7.25)

TL41I - Perry Green (1.00)

TL41N - Allen's Green (1.50)

TL41T - Trims Green (5.25)

TL41Y - Spellbrook (5.50)

TL41E - Kettle Green (1.50)

TL41J - Much Hadham (11.50)

TL41P - Green Tye (8.50)

TL41U - Thorley (8.00)

TL41Z - Thorley Street (8.25)

TL42A - Bromley (2.25)

TL42F - Hadham Ford (3.25)

TL42K - Bury Green (3.00)

TL42Q - Stortford Park (5.75)

TL42V - Bishop's Stortford (3.67)

TL42B - Wellpond Green (1.75)

TL42G - Albury End (3.00)

TL42L - Hadham Hall ()

TL42R - Wickham Hall (5.75)

TL42W - Foxdells Farm (3.00)

TL42C - Braughing Friars (1.50)

TL42H - Albury (1.75)

TL42M - Clapgate (1.50)

TL42S - Farnham (2.00)

TL42X - Hazel End (2.00)

TL42D - Bozen Green (4.00)

TL42I - Furneux Pelham (3.00)

TL42N - Hixham Hall (0.25)

TL42T - Mallows Green (4.00)

TL42E - Little Hormead (3.25)

TL42J - Whitebarns (1.50)

TL42P - Stocking Pelham (1.50)

TL43A - Brick House Farm (4.25)

TL43F - Brent Pelham (3.50)

TL43K - Starling's Green (5.50)

TL43B - Anstey (3.75)

TL43G - Meesden (5.25)

TL43L - Further Ford End (4.75)

TL43C - Nuthampstead (3.25)

TL43H - Langley Lawn (3.25)

TL43D - Abbotsbury Farm (8.00)

TL43I - Chrishall Common (1.00)

TL43E - Chishall Windmill (7.50)

TL44A - Clay Hill (1.25)

TL51C - Gladwyns (10.25)

TL52A - Start Hill (1.00)

TL52F - Tilekiln Green (3.00)

TL52B - Birchanger (3.33)

TL52C - Stansted Mountfitchet (1.33)

TQ09A - Chalfont St Peter (4.50)

TQ09F - West Hyde (1.50)

TQ09K - Harefield ()

TQ09Q - Battlers Wells Farm (3.00)

TQ09V - Northwood (6.50)

TQ09B - Chalfont Common (1.75)

TQ09G - Maple Cross ()

TQ09L - Stocker's Lake (3.00)

TQ09R - Batchworth Heath (1.00)

TQ09W - Moor Park (10.75)

TQ09C - Chorleywood West ()

TQ09H - Chorleywood Bottom (0.50)

TQ09M - Rickmansworth (5.75)

TQ09S - Croxley Green (1.50)

TQ09X - Holywell (1.50)

TQ09I - Chorleywood Common (16.50)

TQ09N - Loudwater (5.00)

TQ09T - Whippendell Wood (5.75)

TQ09Y - Cassiobury Park (9.25)

TQ09E - Chenies (0.50)

TQ09J - Sarratt Bottom (10.75)

TQ09P - Sarratt (2.00)

TQ09U - Chandler's Cross (4.00)

TQ09Z - Leavesden Green (5.50)

TQ19A - Pinnerwood Park (8.75)

TQ19B - Oxhey Wood (12.25)

TQ19G - Carpenders Park (6.75)

TQ19L - Bentley Priory (5.50)

TQ19C - Oxhey (0.25)

TQ19H - Bushey (6.00)

TQ19M - Bushey Heath (1.50)

TQ19S - Aldenham Reservoir (3.75)

TQ19X - Edgewarebury (13.25)

TQ19D - Watford (10.25)

TQ19I - Bushey Hall (4.00)

TQ19N - Letchmore Heath (8.00)

TQ19T - Aldenham Park (3.75)

TQ19Y - Borehamwood (4.75)

TQ19E - North Watford (6.50)

TQ19J - M1 Junction 5 (9.25)

TQ19P - Batlers Green (1.75)

TQ19U - Radlett (4.75)

TQ19Z - Kitwells Farm (4.00)

TQ29C - Sterling Corner (12.00)

TQ29D - Rowley Green (4.75)

TQ29I - Galley Lane Farm (11.00)

TQ29N - High Barnet (3.75)

TQ29E - Buckettsland Farm (1.50)

TQ29J - Dancers Hill (8.50)

TQ29P - Wrotham Park (14.50)

TQ29U - Hadley Wood (7.75)

TQ39U - Enfield Lock (9.25)

Major towns Important bird sites 10km Square IDs

Mean hourly count

0 - <1.75

1.75 - <3.33

3.33 - <4.75

4.75 - <8.00

8.00 or more

This map shows the relative abundance data from TTVs, plotted as mean hourly counts.

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1967-73 Breeding Atlas

1981-84 Winter Atlas

1988-92 Breeding Atlas

2007-12 Winter Atlas

2008-12 Breeding Atlas

1967 vs 1998 Change

1998 vs 2008 Change

2007-12 Winter Abundance

2008-12 Breeding Abundance

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