Hertfordshire Bird Atlas Abundance Map

Yellowhammer

Emberiza citrinella

SP81W - Buckland (1.00)

SP81S - Draytonmead Farm (1.00)

SP81X - Long Marston ()

SP81T - Thistlebrook Farm (2.50)

SP81Y - Alnwick Farm (1.25)

SP81Z - Crafton ()

SP90V - Meadhams Farm (1.75)

SP90W - Orchard Leigh (1.50)

SP90X - Whelpley Hill Farm (2.33)

SP90I - Cholesbury (4.50)

SP90N - Hawridge Common (2.00)

SP90T - Hockeridge Wood (2.25)

SP90Y - Berkhamsted S ()

SP90E - Spencersgreen (1.75)

SP90J - Hastoe (4.00)

SP90P - Champneys (2.00)

SP90U - Northchurch ()

SP90Z - Berkhamsted N (2.67)

SP91A - Tring W ()

SP91F - Tring E (2.75)

SP91K - New Ground (0.50)

SP91Q - Norcott Hill (3.50)

SP91V - Berkhamsted Common ()

SP91B - Little Tring (10.00)

SP91G - New Mill ()

SP91L - Aldbury Nowers (3.00)

SP91R - Aldbury (0.50)

SP91W - Little Gaddesden ()

SP91C - Wilstone ()

SP91H - College Lake (2.50)

SP91M - Pitstone Hill (5.00)

SP91X - Ringshall (2.50)

SP91D - West End Farm (1.50)

SP91E - Mentmore ()

TL00A - Flaunden (2.25)

TL00F - Belsize (0.75)

TL00K - Chipperfield (0.75)

TL00Q - Berrybushes Wood (1.25)

TL00V - Abbots Langley ()

TL00B - Bovingdon (1.00)

TL00G - Bulstrode (3.00)

TL00L - Whippendell Bottom (3.00)

TL00R - Kings Langley (0.25)

TL00W - Bedmond (1.50)

TL00C - Bovingdon Airfield (1.75)

TL00H - Westbrook Hay ()

TL00M - Apsley ()

TL00S - Nash Mills (0.50)

TL00X - Pimlico (1.75)

TL00D - Broadway Farm (3.25)

TL00I - Chaulden ()

TL00N - Hemel Hempstead ()

TL00T - Adeyfield ()

TL00Y - Leverstock Green (1.00)

TL00E - Potten End ()

TL00J - Boxted Farm (2.00)

TL00P - Gadebridge (1.00)

TL00U - Grovehill ()

TL00Z - Buncefield (0.75)

TL01A - Nettleden (2.00)

TL01F - Great Gaddesden (3.50)

TL01K - Briden's Camp (2.00)

TL01Q - Easbrookhay Farm (2.25)

TL01V - The Aubreys (4.50)

TL01B - Hudnall (1.50)

TL01G - Widmore Farm (5.00)

TL01L - Gaddesden Row (0.50)

TL01R - Puddephat's Farm (4.75)

TL01W - Rabbitfield Spring (2.75)

TL01C - Studhamhall Farm ()

TL01H - Clement's End (0.33)

TL01M - Beechwood House (1.00)

TL01S - Flamstead (4.50)

TL01X - Friar's Wash (3.00)

TL01I - Dedmansey Wood (0.50)

TL01N - Markyate W (6.25)

TL01T - Markyate E (1.00)

TL01Y - Pepsal End (4.00)

TL01P - Kensworth Lynch (4.00)

TL01U - Caddington (1.00)

TL01Z - Slip End ()

TL02Y - Galley Hill (1.50)

TL02Z - Barton Hill Farm (2.00)

TL03V - Barton-le-Clay (4.50)

TL10A - Kingswood (0.25)

TL10F - Bricket Wood Common ()

TL10K - Netherwylde Farm (3.25)

TL10Q - Harperbury ()

TL10V - Shenley ()

TL10B - M25 Junction 21 (1.50)

TL10G - Blackgreen Wood ()

TL10L - Frogmore ()

TL10R - Broad Colney ()

TL10W - Salisbury Hall (1.00)

TL10C - Potters Crouch (2.00)

TL10H - Chiswell Green (2.00)

TL10M - St Julians ()

TL10S - London Colney N ()

TL10X - Tyttenhanger ()

TL10D - Gorhambury ()

TL10I - Praewood Farm ()

TL10N - St Albans ()

TL10T - Fleetville ()

TL10Y - Smallford (0.50)

TL10E - Hogg End (2.00)

TL10J - Batchwood Hall ()

TL10P - New Greens and Townsend (0.75)

TL10U - Marshalswick (1.25)

TL10Z - Beech Farm (0.25)

TL11A - Beaumont Hall (2.00)

TL11F - Hedge's Farm (0.50)

TL11K - Cheapside Farm (1.75)

TL11Q - Sandridge (2.00)

TL11V - Symonshyde Great Wood (0.25)

TL11B - Harpendenbury (9.00)

TL11G - Hatching Green (0.75)

TL11L - Harpenden SE (1.25)

TL11R - Nomansland (2.50)

TL11W - Coleman Green (1.50)

TL11C - Faulkners End Farm (2.50)

TL11H - Harpenden NW (0.50)

TL11M - Batford ()

TL11S - Marshalls Heath (0.25)

TL11X - Bride Hall ()

TL11D - West Hyde (0.75)

TL11I - East Hyde (0.25)

TL11N - Bower Heath (1.50)

TL11T - Blackmore End (3.25)

TL11Y - Ayot St Lawrence (2.25)

TL11J - Chiltern Green (4.75)

TL11P - Ansells End (5.67)

TL11U - Kimpton (0.67)

TL11Z - Kimpton Mill ()

TL12F - Luton Airport (0.75)

TL12K - Diamond End (3.75)

TL12Q - Bendish (5.50)

TL12V - Whitwell (1.00)

TL12B - Stopsley (0.25)

TL12G - Tea Green (1.75)

TL12L - The Heath (1.75)

TL12R - Kingswalden Park (4.50)

TL12W - Hitch Wood (0.75)

TL12C - Butterfield Green (1.50)

TL12H - Lilley Bottom (1.50)

TL12M - Ley Green (1.00)

TL12S - Preston (5.25)

TL12X - Poynders End (0.50)

TL12D - Lilley (5.75)

TL12I - The Flints ()

TL12N - Great Offley (0.25)

TL12T - Offleyholes Farm (4.75)

TL12Y - Gosmore (2.00)

TL12E - Telegraph Hill ()

TL12J - Little Offley (1.00)

TL12P - Gravehill Plantation (0.50)

TL12U - Hitchin SW (1.00)

TL12Z - Hitchin Hill (0.33)

TL13A - Hexton (1.00)

TL13F - Tingley Wood (2.75)

TL13K - Pirton ()

TL13Q - Oughtonhead Common (0.25)

TL13V - Ickleford ()

TL13B - Higham Gobion (3.25)

TL13G - Apsley End (1.50)

TL13L - Burge End (2.75)

TL13R - Holwell ()

TL13W - Ickleford Common (0.25)

TL13S - Holwellbury (1.25)

TL13X - Arlesey (0.75)

TL20A - Ridge (0.50)

TL20F - South Mimms ()

TL20K - Potters Bar ()

TL20Q - Five Acre Wood ()

TL20V - Barvin Park (0.25)

TL20B - Redwell Wood Farm (2.00)

TL20G - Royal Veterinary College (2.75)

TL20L - Swanley Bar ()

TL20R - Queenswood ()

TL20W - Northaw (0.25)

TL20C - North Mymms Park (1.00)

TL20H - Welham Green (0.50)

TL20M - Bell Bar ()

TL20S - Kentish Lane Farm (5.00)

TL20X - Great Wood County Park (8.75)

TL20D - Roehyde (1.25)

TL20I - South Hatfield ()

TL20N - Woodside (0.50)

TL20T - Wildhill (1.25)

TL20Y - Little Berkhamsted ()

TL20E - Hatfield Aerodrome ()

TL20J - Birchwood ()

TL20P - Home Park (2.00)

TL20U - Essendon (3.75)

TL20Z - Howe Green (1.25)

TL21A - Cromerhyde Farm ()

TL21F - Stanborough ()

TL21K - Hatfield Hyde ()

TL21Q - Holwell Court Farm (3.00)

TL21V - Letty Green (0.50)

TL21B - Brocket Park (0.25)

TL21G - Sherrardspark ()

TL21L - Peartree ()

TL21R - Panshanger Aerodrome (1.00)

TL21W - Panshanger Stables ()

TL21C - Ayot St Peter ()

TL21H - Digswell Park ()

TL21M - Digswell (0.75)

TL21S - Tewin (1.00)

TL21X - Bramfield (3.75)

TL21D - Pulmer Water (0.50)

TL21I - Welwyn (1.50)

TL21N - Harmergreen Wood ()

TL21T - Bull's Green ()

TL21Y - Bramfield Woods (2.00)

TL21E - Codicote (1.50)

TL21J - Tagmore Green (0.25)

TL21P - Woolmer Green ()

TL21U - Datchworth (1.75)

TL21Z - Watkin's Hall Farm (2.50)

TL22A - Rusling End (1.33)

TL22F - Old Knebworth ()

TL22K - Knebworth ()

TL22Q - Bragbury End (1.33)

TL22V - Frogmore Hall ()

TL22B - Langley Bottom (0.50)

TL22G - Norton Green ()

TL22L - Broadwater ()

TL22R - Aston (2.00)

TL22W - Benington Lordship (0.75)

TL22C - Almshoe Bury (1.50)

TL22H - Stevenage Old Town ()

TL22M - Pin Green ()

TL22S - Chells Manor (1.00)

TL22X - Walkern Lodge (2.75)

TL22D - Titmore Green (2.75)

TL22I - Lister Hospital (0.75)

TL22N - Chesfield Park ()

TL22T - Boxbury Farm (6.00)

TL22Y - Walkern (4.00)

TL22E - Great Wymondley (0.25)

TL22J - Rowley Court (4.50)

TL22P - Damask Green (1.00)

TL22U - Hall's Green (3.00)

TL22Z - Cromer (1.75)

TL23A - Letchworth Hall Hotel (2.50)

TL23F - Willian ()

TL23K - Lannock Manor (5.25)

TL23Q - Weston (5.67)

TL23V - Kingswoodbury (3.50)

TL23B - Letchworth West (0.75)

TL23G - Letchworth East ()

TL23L - Baldock (0.75)

TL23R - Bird Hill (3.00)

TL23W - Wallington (2.75)

TL23C - Letchworth Sewage Works (0.50)

TL23H - Norton and Radwell (2.50)

TL23M - Bygrave Common (0.75)

TL23S - The Firs (2.25)

TL23X - Bygrave Lodge Farm (2.25)

TL23I - A1(M) Junction 10 (1.25)

TL23N - Newnham ()

TL23T - Bygrave (1.50)

TL23Y - Slip End (2.00)

TL23J - Caldecote (1.50)

TL23P - Newnham Hill (2.50)

TL23U - Ashwell (2.00)

TL23Z - Ashwell and Morden Station (2.50)

TL24F - Hinxworth (0.75)

TL24K - Ashwell End (4.50)

TL24Q - Cold Harbour (0.50)

TL24V - Gatley (1.50)

TL24L - Dunton Lodge Farm (2.75)

TL24R - Guilden Morden S (1.00)

TL24S - Guilden Morden N (2.25)

TL30A - Cattlegate Farm (0.50)

TL30F - Theobalds Manor (1.25)

TL30K - Theobalds Park ()

TL30Q - Bowyers Water ()

TL30B - Cuffley ()

TL30G - Goff's Oak (0.50)

TL30L - Flamstead End ()

TL30R - Seventy Acres Lake ()

TL30C - Newgate Street ()

TL30H - Hammond Street ()

TL30M - Wormleybury ()

TL30S - Turnford ()

TL30D - Blackfan Wood (1.25)

TL30I - Cowheath Wood ()

TL30N - Carneles Green ()

TL30T - Broxbourne ()

TL30Y - Nazeing Mead ()

TL30E - Bayford (0.67)

TL30J - Monks Green (0.75)

TL30P - Goose Green (0.75)

TL30U - Hoddesdon ()

TL30Z - Rye House Station ()

TL31A - Bayfordbury (0.25)

TL31F - Brickendonbury ()

TL31K - Hertford Heath ()

TL31Q - St Margarets ()

TL31V - Stanstead Abbotts ()

TL31B - Hertford North Station (0.50)

TL31G - Hertford ()

TL31L - Rush Green ()

TL31R - Great Amwell ()

TL31W - Little Briggens (3.50)

TL31C - Waterford (0.50)

TL31H - Ware Park Farm ()

TL31M - Ware ()

TL31S - Great Cozens (2.00)

TL31X - Wareside (7.00)

TL31D - Stapleford (2.25)

TL31I - Tonwell (4.00)

TL31N - Wadesmill ()

TL31T - Fabdens (2.25)

TL31Y - Bakers End (3.25)

TL31E - Watton at Stone (0.75)

TL31J - Sacombe (4.75)

TL31P - Sacombe Green (9.50)

TL31U - High Cross (1.50)

TL31Z - Barwick (4.50)

TL32A - Whempstead (3.25)

TL32F - Dane End (0.50)

TL32K - Potter's Green (4.00)

TL32Q - Colliers End (1.75)

TL32V - Latchford (5.50)

TL32B - Burn's Green (5.50)

TL32G - Haultwick (5.00)

TL32L - Levens Green (7.00)

TL32R - Old Hall Green (1.50)

TL32W - Standon (0.50)

TL32C - Clay End (1.75)

TL32H - Wood End (1.75)

TL32M - Great Munden (5.75)

TL32S - Hamels Park (4.00)

TL32X - Braughing (1.00)

TL32D - Ardeley (0.50)

TL32I - Moor Green (2.33)

TL32N - Whatbarn Farm (8.00)

TL32T - Westmill ()

TL32Y - Dassels (2.75)

TL32E - Bancroft Farm (3.00)

TL32J - Cottered (4.50)

TL32P - Aspenden Hall (1.75)

TL32U - Buntingford (2.50)

TL32Z - Hare Street (4.25)

TL33A - Rushden (9.00)

TL33F - Broadfield Hall (3.50)

TL33K - Little Butter Hill (2.75)

TL33Q - Wyddial (1.50)

TL33V - Silkmead Farm (4.50)

TL33B - Roe Green (3.25)

TL33G - Green End (1.50)

TL33L - Buckland Bottom (3.25)

TL33R - Capons Wood (0.75)

TL33W - Cave Gate (3.50)

TL33C - Wheat Hill (3.25)

TL33H - Philpott's Wood (3.25)

TL33M - The Homestead (2.75)

TL33S - Strawberry Grove (0.50)

TL33X - Barkway (4.00)

TL33D - Crouch Hill (2.33)

TL33I - Kelshall (1.50)

TL33N - Reed End (0.50)

TL33T - Reed (0.50)

TL33Y - Newsells (0.75)

TL33E - Lower Coombe Farm ()

TL33J - Church Hill (2.25)

TL33P - Mile End Farm (1.25)

TL33U - Whiteley Hill (1.50)

TL33Z - Barley (5.00)

TL34F - Highfield Farm (0.75)

TL34K - Royston W ()

TL34Q - Royston E ()

TL34V - Noon's Folly Farm (1.25)

TL34L - Beauval Farm (1.50)

TL34R - Holland Hall (1.33)

TL41A - Briggens Park ()

TL41F - Eastwick ()

TL41K - Harlow Town Station ()

TL41B - Hunsdonbury (2.75)

TL41G - Eastwick Hall Farm (2.75)

TL41L - Gilston Park (1.50)

TL41R - Rowney Farm ()

TL41W - Durrington Hall (3.50)

TL41C - Hunsdon (3.75)

TL41H - Hunsdon Lodge Farm (2.50)

TL41M - Stonards (2.00)

TL41S - High Wych (1.50)

TL41X - Sawbridgeworth (2.50)

TL41D - Little Blakesware (4.00)

TL41I - Perry Green (0.25)

TL41N - Allen's Green (4.50)

TL41T - Trims Green (3.00)

TL41Y - Spellbrook (0.25)

TL41E - Kettle Green (4.75)

TL41J - Much Hadham (1.75)

TL41P - Green Tye (3.25)

TL41U - Thorley (1.75)

TL41Z - Thorley Street ()

TL42A - Bromley (1.25)

TL42F - Hadham Ford (1.50)

TL42K - Bury Green (1.50)

TL42Q - Stortford Park (1.75)

TL42V - Bishop's Stortford ()

TL42B - Wellpond Green (1.75)

TL42G - Albury End (3.50)

TL42L - Hadham Hall (2.25)

TL42R - Wickham Hall (3.75)

TL42W - Foxdells Farm (1.00)

TL42C - Braughing Friars (4.75)

TL42H - Albury (2.50)

TL42M - Clapgate (2.50)

TL42S - Farnham (6.25)

TL42X - Hazel End (0.50)

TL42D - Bozen Green (5.75)

TL42I - Furneux Pelham (3.50)

TL42N - Hixham Hall (1.00)

TL42T - Mallows Green (5.50)

TL42E - Little Hormead (4.00)

TL42J - Whitebarns (1.75)

TL42P - Stocking Pelham (2.25)

TL43A - Brick House Farm (7.00)

TL43F - Brent Pelham (2.00)

TL43K - Starling's Green (2.00)

TL43B - Anstey (4.50)

TL43G - Meesden (5.00)

TL43L - Further Ford End (4.50)

TL43C - Nuthampstead (3.00)

TL43H - Langley Lawn (3.75)

TL43D - Abbotsbury Farm (4.00)

TL43I - Chrishall Common (0.50)

TL43E - Chishall Windmill (3.50)

TL44A - Clay Hill (5.00)

TL51C - Gladwyns (0.50)

TL52A - Start Hill (1.75)

TL52F - Tilekiln Green (0.67)

TL52B - Birchanger (3.00)

TL52C - Stansted Mountfitchet (0.33)

TQ09A - Chalfont St Peter (0.25)

TQ09F - West Hyde ()

TQ09K - Harefield ()

TQ09Q - Battlers Wells Farm ()

TQ09V - Northwood ()

TQ09B - Chalfont Common (3.25)

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 (0.50)

TQ09N - Loudwater (0.50)

TQ09T - Whippendell Wood ()

TQ09Y - Cassiobury Park ()

TQ09E - Chenies ()

TQ09J - Sarratt Bottom (0.50)

TQ09P - Sarratt (1.50)

TQ09U - Chandler's Cross ()

TQ09Z - Leavesden Green ()

TQ19A - Pinnerwood Park ()

TQ19B - Oxhey Wood ()

TQ19G - Carpenders Park ()

TQ19L - Bentley Priory ()

TQ19C - Oxhey ()

TQ19H - Bushey (0.25)

TQ19M - Bushey Heath ()

TQ19S - Aldenham Reservoir ()

TQ19X - Edgewarebury ()

TQ19D - Watford ()

TQ19I - Bushey Hall ()

TQ19N - Letchmore Heath (1.50)

TQ19T - Aldenham Park (0.25)

TQ19Y - Borehamwood ()

TQ19E - North Watford ()

TQ19J - M1 Junction 5 ()

TQ19P - Batlers Green (0.50)

TQ19U - Radlett ()

TQ19Z - Kitwells Farm ()

TQ29C - Sterling Corner ()

TQ29D - Rowley Green ()

TQ29I - Galley Lane Farm ()

TQ29N - High Barnet ()

TQ29E - Buckettsland Farm ()

TQ29J - Dancers Hill (0.50)

TQ29P - Wrotham Park (0.50)

TQ29U - Hadley Wood (1.25)

TQ39U - Enfield Lock ()

Major towns Important bird sites 10km Square IDs

Mean hourly count

0 - <0.75

0.75 - <1.50

1.50 - <2.25

2.25 - <3.50

3.50 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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