Hertfordshire Bird Atlas Abundance Map

Blue Tit

Cyanistes caeruleus

SP81W - Buckland (6.00)

SP81S - Draytonmead Farm (6.50)

SP81X - Long Marston (10.75)

SP81T - Thistlebrook Farm (3.25)

SP81Y - Alnwick Farm (1.75)

SP81Z - Crafton (0.75)

SP90V - Meadhams Farm (6.00)

SP90W - Orchard Leigh (13.75)

SP90X - Whelpley Hill Farm (4.67)

SP90I - Cholesbury (12.50)

SP90N - Hawridge Common (11.00)

SP90T - Hockeridge Wood (12.25)

SP90Y - Berkhamsted S (21.00)

SP90E - Spencersgreen (5.00)

SP90J - Hastoe (11.50)

SP90P - Champneys (14.00)

SP90U - Northchurch (7.50)

SP90Z - Berkhamsted N (13.00)

SP91A - Tring W ()

SP91F - Tring E (6.75)

SP91K - New Ground (8.25)

SP91Q - Norcott Hill (6.00)

SP91V - Berkhamsted Common (6.00)

SP91B - Little Tring (1.50)

SP91G - New Mill (7.33)

SP91L - Aldbury Nowers (5.00)

SP91R - Aldbury (6.00)

SP91W - Little Gaddesden (10.25)

SP91C - Wilstone (4.00)

SP91H - College Lake (4.50)

SP91M - Pitstone Hill (8.25)

SP91X - Ringshall (6.25)

SP91D - West End Farm (3.75)

SP91E - Mentmore (5.75)

TL00A - Flaunden (5.00)

TL00F - Belsize (1.25)

TL00K - Chipperfield (2.50)

TL00Q - Berrybushes Wood (2.50)

TL00V - Abbots Langley (0.75)

TL00B - Bovingdon (14.00)

TL00G - Bulstrode (7.25)

TL00L - Whippendell Bottom (3.50)

TL00R - Kings Langley (3.00)

TL00W - Bedmond (0.50)

TL00C - Bovingdon Airfield (8.25)

TL00H - Westbrook Hay (11.25)

TL00M - Apsley (1.00)

TL00S - Nash Mills (4.50)

TL00X - Pimlico (3.75)

TL00D - Broadway Farm (16.00)

TL00I - Chaulden (11.75)

TL00N - Hemel Hempstead (7.00)

TL00T - Adeyfield (2.00)

TL00Y - Leverstock Green (1.50)

TL00E - Potten End (12.00)

TL00J - Boxted Farm (19.75)

TL00P - Gadebridge (5.50)

TL00U - Grovehill (16.25)

TL00Z - Buncefield (8.75)

TL01A - Nettleden (9.75)

TL01F - Great Gaddesden (3.50)

TL01K - Briden's Camp (5.50)

TL01Q - Easbrookhay Farm (9.50)

TL01V - The Aubreys (8.00)

TL01B - Hudnall (9.00)

TL01G - Widmore Farm (13.25)

TL01L - Gaddesden Row (2.25)

TL01R - Puddephat's Farm (15.50)

TL01W - Rabbitfield Spring (6.00)

TL01C - Studhamhall Farm (7.50)

TL01H - Clement's End (8.67)

TL01M - Beechwood House (7.33)

TL01S - Flamstead (12.00)

TL01X - Friar's Wash (5.00)

TL01I - Dedmansey Wood (4.75)

TL01N - Markyate W (6.75)

TL01T - Markyate E (13.25)

TL01Y - Pepsal End (13.25)

TL01P - Kensworth Lynch (7.50)

TL01U - Caddington (8.50)

TL01Z - Slip End (3.50)

TL02Y - Galley Hill (1.50)

TL02Z - Barton Hill Farm (13.50)

TL03V - Barton-le-Clay (4.25)

TL10A - Kingswood (2.25)

TL10F - Bricket Wood Common (4.25)

TL10K - Netherwylde Farm (4.75)

TL10Q - Harperbury (3.25)

TL10V - Shenley (4.50)

TL10B - M25 Junction 21 (1.25)

TL10G - Blackgreen Wood (4.75)

TL10L - Frogmore (3.00)

TL10R - Broad Colney (3.75)

TL10W - Salisbury Hall (7.00)

TL10C - Potters Crouch (4.50)

TL10H - Chiswell Green (3.25)

TL10M - St Julians (3.00)

TL10S - London Colney N (5.00)

TL10X - Tyttenhanger (3.50)

TL10D - Gorhambury (1.50)

TL10I - Praewood Farm (0.75)

TL10N - St Albans (4.00)

TL10T - Fleetville (4.25)

TL10Y - Smallford (6.00)

TL10E - Hogg End (3.00)

TL10J - Batchwood Hall (2.00)

TL10P - New Greens and Townsend (3.00)

TL10U - Marshalswick (4.00)

TL10Z - Beech Farm (2.00)

TL11A - Beaumont Hall (5.25)

TL11F - Hedge's Farm (3.50)

TL11K - Cheapside Farm (2.25)

TL11Q - Sandridge (3.00)

TL11V - Symonshyde Great Wood (2.50)

TL11B - Harpendenbury (7.00)

TL11G - Hatching Green (12.50)

TL11L - Harpenden SE (7.75)

TL11R - Nomansland (11.25)

TL11W - Coleman Green (8.00)

TL11C - Faulkners End Farm (2.25)

TL11H - Harpenden NW (6.50)

TL11M - Batford (10.50)

TL11S - Marshalls Heath (3.00)

TL11X - Bride Hall (9.00)

TL11D - West Hyde (14.25)

TL11I - East Hyde (1.25)

TL11N - Bower Heath (13.50)

TL11T - Blackmore End (8.75)

TL11Y - Ayot St Lawrence (5.50)

TL11J - Chiltern Green (7.25)

TL11P - Ansells End (10.67)

TL11U - Kimpton (7.00)

TL11Z - Kimpton Mill (5.25)

TL12F - Luton Airport (1.50)

TL12K - Diamond End (8.00)

TL12Q - Bendish (4.00)

TL12V - Whitwell (4.50)

TL12B - Stopsley (2.00)

TL12G - Tea Green (4.75)

TL12L - The Heath (4.00)

TL12R - Kingswalden Park (12.25)

TL12W - Hitch Wood (18.50)

TL12C - Butterfield Green (5.50)

TL12H - Lilley Bottom (1.00)

TL12M - Ley Green (1.50)

TL12S - Preston (6.00)

TL12X - Poynders End (6.50)

TL12D - Lilley (5.25)

TL12I - The Flints (2.25)

TL12N - Great Offley (2.50)

TL12T - Offleyholes Farm (3.25)

TL12Y - Gosmore (12.50)

TL12E - Telegraph Hill (1.50)

TL12J - Little Offley (2.50)

TL12P - Gravehill Plantation (2.00)

TL12U - Hitchin SW (1.50)

TL12Z - Hitchin Hill (6.00)

TL13A - Hexton (8.00)

TL13F - Tingley Wood (4.75)

TL13K - Pirton (2.00)

TL13Q - Oughtonhead Common (5.50)

TL13V - Ickleford (3.25)

TL13B - Higham Gobion (3.00)

TL13G - Apsley End (4.50)

TL13L - Burge End (1.25)

TL13R - Holwell (1.50)

TL13W - Ickleford Common (2.50)

TL13S - Holwellbury (1.50)

TL13X - Arlesey (2.00)

TL20A - Ridge (3.75)

TL20F - South Mimms (5.50)

TL20K - Potters Bar (2.50)

TL20Q - Five Acre Wood (0.67)

TL20V - Barvin Park (11.25)

TL20B - Redwell Wood Farm (4.00)

TL20G - Royal Veterinary College (21.25)

TL20L - Swanley Bar (24.00)

TL20R - Queenswood (5.25)

TL20W - Northaw (20.50)

TL20C - North Mymms Park (10.00)

TL20H - Welham Green (11.00)

TL20M - Bell Bar (4.25)

TL20S - Kentish Lane Farm (17.75)

TL20X - Great Wood County Park (27.00)

TL20D - Roehyde (8.75)

TL20I - South Hatfield (13.75)

TL20N - Woodside (19.00)

TL20T - Wildhill (23.50)

TL20Y - Little Berkhamsted (9.50)

TL20E - Hatfield Aerodrome (9.00)

TL20J - Birchwood (29.50)

TL20P - Home Park (18.00)

TL20U - Essendon (13.25)

TL20Z - Howe Green (23.25)

TL21A - Cromerhyde Farm (9.25)

TL21F - Stanborough (9.75)

TL21K - Hatfield Hyde (4.25)

TL21Q - Holwell Court Farm (4.50)

TL21V - Letty Green (3.00)

TL21B - Brocket Park (11.00)

TL21G - Sherrardspark (21.25)

TL21L - Peartree (14.25)

TL21R - Panshanger Aerodrome (6.50)

TL21W - Panshanger Stables (2.25)

TL21C - Ayot St Peter (15.75)

TL21H - Digswell Park (2.00)

TL21M - Digswell (11.00)

TL21S - Tewin (19.00)

TL21X - Bramfield (4.00)

TL21D - Pulmer Water (3.50)

TL21I - Welwyn (0.50)

TL21N - Harmergreen Wood (8.50)

TL21T - Bull's Green (3.50)

TL21Y - Bramfield Woods (6.25)

TL21E - Codicote (0.25)

TL21J - Tagmore Green (7.00)

TL21P - Woolmer Green (10.00)

TL21U - Datchworth (4.00)

TL21Z - Watkin's Hall Farm (13.00)

TL22A - Rusling End (12.00)

TL22F - Old Knebworth (2.75)

TL22K - Knebworth (13.00)

TL22Q - Bragbury End (1.33)

TL22V - Frogmore Hall (5.00)

TL22B - Langley Bottom (3.25)

TL22G - Norton Green (5.25)

TL22L - Broadwater (6.50)

TL22R - Aston (1.00)

TL22W - Benington Lordship (6.75)

TL22C - Almshoe Bury (5.00)

TL22H - Stevenage Old Town (1.50)

TL22M - Pin Green (0.25)

TL22S - Chells Manor (6.00)

TL22X - Walkern Lodge (4.00)

TL22D - Titmore Green (5.50)

TL22I - Lister Hospital (3.75)

TL22N - Chesfield Park (6.00)

TL22T - Boxbury Farm (2.50)

TL22Y - Walkern (3.75)

TL22E - Great Wymondley (3.25)

TL22J - Rowley Court (5.25)

TL22P - Damask Green (1.50)

TL22U - Hall's Green (5.00)

TL22Z - Cromer (5.50)

TL23A - Letchworth Hall Hotel (6.00)

TL23F - Willian (6.50)

TL23K - Lannock Manor (5.75)

TL23Q - Weston (10.67)

TL23V - Kingswoodbury (5.75)

TL23B - Letchworth West (1.75)

TL23G - Letchworth East (3.75)

TL23L - Baldock (4.25)

TL23R - Bird Hill (1.25)

TL23W - Wallington (7.00)

TL23C - Letchworth Sewage Works (3.50)

TL23H - Norton and Radwell (2.75)

TL23M - Bygrave Common (3.50)

TL23S - The Firs (0.50)

TL23X - Bygrave Lodge Farm (0.75)

TL23I - A1(M) Junction 10 (6.50)

TL23N - Newnham (1.25)

TL23T - Bygrave (0.50)

TL23Y - Slip End (1.50)

TL23J - Caldecote (3.50)

TL23P - Newnham Hill (3.50)

TL23U - Ashwell (3.00)

TL23Z - Ashwell and Morden Station (4.50)

TL24F - Hinxworth (4.00)

TL24K - Ashwell End (4.00)

TL24Q - Cold Harbour (5.50)

TL24V - Gatley (2.50)

TL24L - Dunton Lodge Farm (2.25)

TL24R - Guilden Morden S (3.50)

TL24S - Guilden Morden N (3.75)

TL30A - Cattlegate Farm (4.50)

TL30F - Theobalds Manor (2.75)

TL30K - Theobalds Park (9.00)

TL30Q - Bowyers Water (4.50)

TL30B - Cuffley (7.00)

TL30G - Goff's Oak (3.25)

TL30L - Flamstead End (3.50)

TL30R - Seventy Acres Lake (4.33)

TL30C - Newgate Street (11.25)

TL30H - Hammond Street (16.00)

TL30M - Wormleybury (5.00)

TL30S - Turnford (3.00)

TL30D - Blackfan Wood (14.50)

TL30I - Cowheath Wood (12.50)

TL30N - Carneles Green (11.50)

TL30T - Broxbourne (4.50)

TL30Y - Nazeing Mead (11.75)

TL30E - Bayford (17.67)

TL30J - Monks Green (3.00)

TL30P - Goose Green (12.75)

TL30U - Hoddesdon (5.25)

TL30Z - Rye House Station (7.25)

TL31A - Bayfordbury (6.75)

TL31F - Brickendonbury (2.50)

TL31K - Hertford Heath (22.00)

TL31Q - St Margarets (4.25)

TL31V - Stanstead Abbotts (3.50)

TL31B - Hertford North Station (15.50)

TL31G - Hertford (4.25)

TL31L - Rush Green (3.25)

TL31R - Great Amwell (6.50)

TL31W - Little Briggens (5.75)

TL31C - Waterford (2.00)

TL31H - Ware Park Farm (7.00)

TL31M - Ware (1.50)

TL31S - Great Cozens (6.25)

TL31X - Wareside (17.25)

TL31D - Stapleford (4.50)

TL31I - Tonwell (5.00)

TL31N - Wadesmill (5.00)

TL31T - Fabdens (3.75)

TL31Y - Bakers End (11.50)

TL31E - Watton at Stone (8.75)

TL31J - Sacombe (7.25)

TL31P - Sacombe Green (32.25)

TL31U - High Cross (9.75)

TL31Z - Barwick (8.25)

TL32A - Whempstead (2.25)

TL32F - Dane End (4.00)

TL32K - Potter's Green (3.50)

TL32Q - Colliers End (3.75)

TL32V - Latchford (6.00)

TL32B - Burn's Green (3.50)

TL32G - Haultwick (4.50)

TL32L - Levens Green (2.75)

TL32R - Old Hall Green (4.75)

TL32W - Standon (3.50)

TL32C - Clay End (5.25)

TL32H - Wood End (3.00)

TL32M - Great Munden (6.25)

TL32S - Hamels Park (7.00)

TL32X - Braughing (6.00)

TL32D - Ardeley (3.50)

TL32I - Moor Green (13.67)

TL32N - Whatbarn Farm (5.50)

TL32T - Westmill (4.25)

TL32Y - Dassels (2.00)

TL32E - Bancroft Farm (1.25)

TL32J - Cottered (3.00)

TL32P - Aspenden Hall (3.00)

TL32U - Buntingford (4.25)

TL32Z - Hare Street (3.50)

TL33A - Rushden (8.50)

TL33F - Broadfield Hall (1.75)

TL33K - Little Butter Hill (8.00)

TL33Q - Wyddial (3.50)

TL33V - Silkmead Farm (2.75)

TL33B - Roe Green (4.25)

TL33G - Green End (1.25)

TL33L - Buckland Bottom (5.00)

TL33R - Capons Wood (0.50)

TL33W - Cave Gate (4.75)

TL33C - Wheat Hill (2.50)

TL33H - Philpott's Wood (3.00)

TL33M - The Homestead (3.50)

TL33S - Strawberry Grove (2.50)

TL33X - Barkway (6.50)

TL33D - Crouch Hill ()

TL33I - Kelshall (2.50)

TL33N - Reed End (1.00)

TL33T - Reed (1.25)

TL33Y - Newsells (3.25)

TL33E - Lower Coombe Farm (4.00)

TL33J - Church Hill (1.50)

TL33P - Mile End Farm (4.50)

TL33U - Whiteley Hill (6.00)

TL33Z - Barley (3.25)

TL34F - Highfield Farm (1.75)

TL34K - Royston W (2.00)

TL34Q - Royston E (5.25)

TL34V - Noon's Folly Farm (3.25)

TL34L - Beauval Farm (2.50)

TL34R - Holland Hall (1.67)

TL41A - Briggens Park (10.75)

TL41F - Eastwick (3.00)

TL41K - Harlow Town Station (4.75)

TL41B - Hunsdonbury (6.00)

TL41G - Eastwick Hall Farm (5.50)

TL41L - Gilston Park (10.75)

TL41R - Rowney Farm (2.33)

TL41W - Durrington Hall (8.00)

TL41C - Hunsdon (3.50)

TL41H - Hunsdon Lodge Farm (8.50)

TL41M - Stonards (0.50)

TL41S - High Wych (4.50)

TL41X - Sawbridgeworth (11.25)

TL41D - Little Blakesware (2.75)

TL41I - Perry Green (2.50)

TL41N - Allen's Green (9.00)

TL41T - Trims Green (2.75)

TL41Y - Spellbrook (4.50)

TL41E - Kettle Green (4.50)

TL41J - Much Hadham (4.50)

TL41P - Green Tye (4.25)

TL41U - Thorley (4.00)

TL41Z - Thorley Street (11.75)

TL42A - Bromley (3.25)

TL42F - Hadham Ford (10.50)

TL42K - Bury Green (3.50)

TL42Q - Stortford Park (2.75)

TL42V - Bishop's Stortford (4.67)

TL42B - Wellpond Green (5.25)

TL42G - Albury End (7.25)

TL42L - Hadham Hall ()

TL42R - Wickham Hall (4.50)

TL42W - Foxdells Farm (5.00)

TL42C - Braughing Friars (5.50)

TL42H - Albury (7.50)

TL42M - Clapgate (7.75)

TL42S - Farnham (7.25)

TL42X - Hazel End (3.50)

TL42D - Bozen Green (6.00)

TL42I - Furneux Pelham (3.75)

TL42N - Hixham Hall (6.25)

TL42T - Mallows Green (6.00)

TL42E - Little Hormead (7.00)

TL42J - Whitebarns (5.50)

TL42P - Stocking Pelham (4.25)

TL43A - Brick House Farm (6.00)

TL43F - Brent Pelham (15.00)

TL43K - Starling's Green (10.00)

TL43B - Anstey (6.00)

TL43G - Meesden (4.75)

TL43L - Further Ford End (3.75)

TL43C - Nuthampstead (7.50)

TL43H - Langley Lawn (4.25)

TL43D - Abbotsbury Farm (7.00)

TL43I - Chrishall Common (2.25)

TL43E - Chishall Windmill (7.00)

TL44A - Clay Hill (0.75)

TL51C - Gladwyns (5.00)

TL52A - Start Hill (5.50)

TL52F - Tilekiln Green (4.00)

TL52B - Birchanger (2.00)

TL52C - Stansted Mountfitchet (3.67)

TQ09A - Chalfont St Peter (8.00)

TQ09F - West Hyde (7.50)

TQ09K - Harefield (12.50)

TQ09Q - Battlers Wells Farm (2.50)

TQ09V - Northwood (12.00)

TQ09B - Chalfont Common (4.50)

TQ09G - Maple Cross (4.50)

TQ09L - Stocker's Lake (3.50)

TQ09R - Batchworth Heath (3.50)

TQ09W - Moor Park (15.00)

TQ09C - Chorleywood West ()

TQ09H - Chorleywood Bottom (3.75)

TQ09M - Rickmansworth (12.50)

TQ09S - Croxley Green (2.75)

TQ09X - Holywell (8.00)

TQ09I - Chorleywood Common (10.00)

TQ09N - Loudwater (12.25)

TQ09T - Whippendell Wood (3.75)

TQ09Y - Cassiobury Park (3.50)

TQ09E - Chenies (1.00)

TQ09J - Sarratt Bottom (4.00)

TQ09P - Sarratt (4.00)

TQ09U - Chandler's Cross (11.00)

TQ09Z - Leavesden Green (3.25)

TQ19A - Pinnerwood Park (8.25)

TQ19B - Oxhey Wood (5.75)

TQ19G - Carpenders Park (8.25)

TQ19L - Bentley Priory (4.75)

TQ19C - Oxhey (5.00)

TQ19H - Bushey (6.50)

TQ19M - Bushey Heath (3.00)

TQ19S - Aldenham Reservoir (7.25)

TQ19X - Edgewarebury (8.50)

TQ19D - Watford (3.50)

TQ19I - Bushey Hall (6.50)

TQ19N - Letchmore Heath (13.50)

TQ19T - Aldenham Park (4.25)

TQ19Y - Borehamwood (7.50)

TQ19E - North Watford (3.50)

TQ19J - M1 Junction 5 (0.75)

TQ19P - Batlers Green (2.50)

TQ19U - Radlett (4.50)

TQ19Z - Kitwells Farm (8.50)

TQ29C - Sterling Corner (6.50)

TQ29D - Rowley Green (8.50)

TQ29I - Galley Lane Farm (17.00)

TQ29N - High Barnet (6.25)

TQ29E - Buckettsland Farm (5.00)

TQ29J - Dancers Hill (11.75)

TQ29P - Wrotham Park (24.00)

TQ29U - Hadley Wood (11.75)

TQ39U - Enfield Lock (9.25)

Major towns Important bird sites 10km Square IDs

Mean hourly count

0 - <2.75

2.75 - <4.25

4.25 - <6.00

6.00 - <9.50

9.50 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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