The Warren ✦ Ancient woodland 3 ha
🦉 Wildlife🦅 Birds🦋 Insects
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Public access Free entry Dogs welcome 3 ha
Places › England › Eastern › North Hertfordshire Getting here
51.91817, -0.28869
Open directionsv Visiting this summer
Seasonal nature notes and what to look for now
▾ 🌞 Midsummer — early morning visits most comfortable; look for deer fawns in quieter clearings 🐕 Early mornings are best for dog walks in summer — visit before 9am to avoid the heat and find quieter trails 📍 Open access throughout summer — no booking required 🌤️ Visiting this summer
🌞 Midsummer — early morning visits most comfortable; look for deer fawns in quieter clearings 🐕 Early mornings are best for dog walks in summer — visit before 9am to avoid the heat and find quieter trails 📍 Open access throughout summer — no booking required £ Free to visit — no entry charge🐕 Dogs welcome🌿 Ancient woodland — rare wildlife habitat🦉 Wildlife
Very strong match
Multi-group wildlife — Amphibians, Birds, Mammals; Multi-group wildlife — Amphibians, Birds, Mammals
Free
🦅 Bird watching
Very strong match
Birds — Carrion Crow, Woodpigeon, Jackdaw +66 more · last seen 2025; Birds — Carrion Crow, Woodpigeon, Jackdaw +66 more · last seen 2025
Free
🦋 Insect spotting
Strong match
Insects — Large Red Damselfly, Azure Damselfly, Common Darter +90 more · last seen 2026; Insects — Large Red Damselfly, Azure Damselfly, Common Darter +90 more · last seen 2026
Free
🍂 Seasonal nature
Strong match
Plants — Toothwort, Swine-cress, Smooth Tare +96 more · last seen 2025; Plants — Toothwort, Swine-cress, Smooth Tare +96 more · last seen 2025
Free
Dogs allowed — public woodland
Free
Plants — Common Nettle, Pedunculate Oak, Smooth Hawk's-beard +7 more foraging species; Deciduous woodland — fungi, berries and wild garlic
Varies
Trails nearby Within roughly 5 km 15 signed routes nearby · 5 public paths nearby
Signed route nearby Public paths
The Chiltern Way Walking route 275 km ▾
A waymarked long-distance footpath in southern England
Named route Ref CW Length 275 km Regional walking route
Show on map Icknield Way Path Walking route 169 km ▾
long distance footpath 169 km
Named route Length 169 km Regional walking route
Show on map Hertfordshire Way Walking route 267 km ▾
Long distance path
Named route Length 267 km Regional walking route
Show on map STOOP Link Path 7 - Stevenage Outer Orbital Path Walking route ▾
Link from Stevenage to the STOOP path (at approx 10 o'clock on clockface)
Named route Local walking route
Show on map STOOP Link Path 6 - Stevenage Outer Orbital Path Walking route ▾
Link from Stevenage to the STOOP path (at approx 9 o'clock on clockface)
Named route Local walking route
Show on map 23 signed routes nearby
Signed route nearby
Route 12 Cycling route ▾
Named route Ref 12 National Cycle Network
Show on map Chilterns Cycleway (road alternative) Cycling route ▾
Named route Local cycle route
Show on map Recreational Cycle Route 16 Cycling route ▾
Local circular? cycle route
Named route Local cycle route
Show on map Chilterns Cycleway Cycling route ▾
Named route Round trip Regional cycle route
Show on map Main Route Cycling route 263 m ▾
Named route Ref 12 Length 263 m National Cycle Network On-road Surface asphalt
Show on map Main Route Cycling route 481 m ▾
Named route Ref 12 Length 481 m National Cycle Network Traffic-free Surface unsealedfirm
Show on map 1 signed route nearby
Signed route nearby
Icknield Way Cycle Trail Mountain bike route 226 km ▾
This is the off-road or mountain cycling route of the Icknield Way Trail.
Named route Length 226 km Regional cycle route
Show on map 6 public paths nearby
Public paths
Tatmorehills Lane bridleway · 145 m ▾
Public path bridleway Length 145 m Surface ground Path type: bridleway
Show on map Tatmorehills Lane bridleway · 744 m ▾
Public path bridleway Length 744 m Surface ground Path type: bridleway
Show on map Tatmorehills Lane bridleway · 202 m ▾
Public path bridleway Length 202 m Surface ground Path type: bridleway
Show on map ✦ Ancient woodland — continuously wooded since at least 1600 AD. A rare and irreplaceable habitat, rich in biodiversity and historical character.
Weather for this location Next 14 days Nearby places Useful places within 5 km
All Historic
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id: ab06267d-8ca5-4db1-a31e-c462a5d98b28
UK green spaces mapped from open public data — so anyone can find the woodland, trail, or nature reserve closest to them.
© 2026 Glade · Made with care for UK green spaces
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Wildlife to spot
19,157 records · National Biodiversity Network
▾
Wildlife to spot 19,157 records · National Biodiversity Network 🐦 Birds 47 species
spring winter
2025 ▾
Carrion Crow · Woodpigeon · Blackbird · Chaffinch · Robin +42
Carrion Crow Corvus corone Woodpigeon Columba palumbus Blackbird Turdus merula Chaffinch Fringilla coelebs Robin Erithacus rubecula Pheasant Phasianus colchicus Great Tit Parus major Wren Troglodytes troglodytes Great Spotted Woodpecker Dendrocopos major Jackdaw Coloeus monedula Dunnock Prunella modularis Blue Tit Cyanistes caeruleus Pied Wagtail Motacilla alba Goldfinch Carduelis carduelis Magpie Pica pica Long-tailed Tit Aegithalos caudatus Goldcrest Regulus regulus Fieldfare Turdus pilaris Stock Dove Columba oenas Rock Dove Columba livia Greenfinch Chloris chloris House Sparrow Passer domesticus Skylark Alauda arvensis Starling Sturnus vulgaris Song Thrush Turdus philomelos Redwing Turdus iliacus Jay Garrulus glandarius Yellowhammer Emberiza citrinella Moorhen Gallinula chloropus Red-legged Partridge Alectoris rufa Linnet Linaria cannabina Treecreeper Certhia familiaris Nuthatch Sitta europaea Siskin Spinus spinus Coal Tit Periparus ater Common Gull Larus canus Rook Corvus frugilegus Black-headed Gull Chroicocephalus ridibundus Grey Heron Ardea cinerea Barn Owl Tyto alba Whitethroat Curruca communis Corn Bunting Emberiza calandra Chiffchaff Phylloscopus collybita Swift Apus apus Swallow Hirundo rustica Blackcap Sylvia atricapilla Lesser Whitethroat Curruca curruca Grey Squirrel · Wood Mouse · Rabbit · Brown Hare
Grey Squirrel Sciurus carolinensis Wood Mouse Apodemus sylvaticus Rabbit Oryctolagus cuniculus Brown Hare Lepus europaeus 🐸 Amphibians 2 species
summer
2025 ▾
Smooth Newt · Common Frog
Smooth Newt Lissotriton vulgaris Common Frog Rana temporaria 🐝 Insects 30 species
spring summer
2026 ▾
Large Red Damselfly · Common Darter · Azure Damselfly · Willow Emerald Damselfly · Harlequin Ladybird +25
Large Red Damselfly Pyrrhosoma nymphula2025 Common Darter Sympetrum striolatum2025 Azure Damselfly Coenagrion puella2025 Willow Emerald Damselfly Chalcolestes viridis2025 Harlequin Ladybird Harmonia axyridis2025 🌿 Plants 7 species
spring summer
2025 ▾
Toothwort · Wood Speedwell · Grey Poplar · Smooth Tare · Soft-brome +2
Toothwort Lathraea squamaria Wood Speedwell Veronica montana Grey Poplar Populus alba x tremula = P. x canescens Smooth Tare Ervum tetraspermum Soft-brome Bromus hordeaceus Field Gromwell Buglossoides arvensis Species observations from the last 10 years via NBN Atlas
Wildlife to spot 19,157 records · National Biodiversity Network 🐦 Birds 47 species
spring winter
2025 ▾
Carrion Crow · Woodpigeon · Blackbird · Chaffinch · Robin +42
Carrion Crow Corvus corone Woodpigeon Columba palumbus Blackbird Turdus merula Chaffinch Fringilla coelebs Robin Erithacus rubecula Pheasant Phasianus colchicus Great Tit Parus major Wren Troglodytes troglodytes Great Spotted Woodpecker Dendrocopos major Jackdaw Coloeus monedula Dunnock Prunella modularis Blue Tit Cyanistes caeruleus Pied Wagtail Motacilla alba Goldfinch Carduelis carduelis Magpie Pica pica Long-tailed Tit Aegithalos caudatus Goldcrest Regulus regulus Fieldfare Turdus pilaris Stock Dove Columba oenas Rock Dove Columba livia Greenfinch Chloris chloris House Sparrow Passer domesticus Skylark Alauda arvensis Starling Sturnus vulgaris Song Thrush Turdus philomelos Redwing Turdus iliacus Jay Garrulus glandarius Yellowhammer Emberiza citrinella Moorhen Gallinula chloropus Red-legged Partridge Alectoris rufa Linnet Linaria cannabina Treecreeper Certhia familiaris Nuthatch Sitta europaea Siskin Spinus spinus Coal Tit Periparus ater Common Gull Larus canus Rook Corvus frugilegus Black-headed Gull Chroicocephalus ridibundus Grey Heron Ardea cinerea Barn Owl Tyto alba Whitethroat Curruca communis Corn Bunting Emberiza calandra Chiffchaff Phylloscopus collybita Swift Apus apus Swallow Hirundo rustica Blackcap Sylvia atricapilla Lesser Whitethroat Curruca curruca Grey Squirrel · Wood Mouse · Rabbit · Brown Hare
Grey Squirrel Sciurus carolinensis Wood Mouse Apodemus sylvaticus Rabbit Oryctolagus cuniculus Brown Hare Lepus europaeus 🐸 Amphibians 2 species
summer
2025 ▾
Smooth Newt · Common Frog
Smooth Newt Lissotriton vulgaris Common Frog Rana temporaria 🐝 Insects 30 species
spring summer
2026 ▾
Large Red Damselfly · Common Darter · Azure Damselfly · Willow Emerald Damselfly · Harlequin Ladybird +25
Large Red Damselfly Pyrrhosoma nymphula2025 Common Darter Sympetrum striolatum2025 Azure Damselfly Coenagrion puella2025 Willow Emerald Damselfly Chalcolestes viridis2025 Harlequin Ladybird Harmonia axyridis2025 🌿 Plants 7 species
spring summer
2025 ▾
Toothwort · Wood Speedwell · Grey Poplar · Smooth Tare · Soft-brome +2
Toothwort Lathraea squamaria Wood Speedwell Veronica montana Grey Poplar Populus alba x tremula = P. x canescens Smooth Tare Ervum tetraspermum Soft-brome Bromus hordeaceus Field Gromwell Buglossoides arvensis Species observations from the last 10 years via NBN Atlas
Grypocoris (Lophyromiris) stysi Grypocoris (Lophyromiris) stysi2025
Grypocoris (Lophyromiris) stysi Grypocoris (Lophyromiris) stysi2025
Broad-bodied Chaser Libellula depressa2025
Broad-bodied Chaser Libellula depressa2025
Black Clock Pterostichus madidus
Black Clock Pterostichus madidus
Demetrias atricapillus Demetrias atricapillus2025
Demetrias atricapillus Demetrias atricapillus2025
Field Maple Disc-miner Heterarthrus wuestneii2025
Field Maple Disc-miner Heterarthrus wuestneii2025
Field Grasshopper Chorthippus brunneus2025
Field Grasshopper Chorthippus brunneus2025
Emperor Dragonfly Anax imperator2025
Emperor Dragonfly Anax imperator2025
7-spot Ladybird Coccinella septempunctata2025
7-spot Ladybird Coccinella septempunctata2025
Fig Gall Tetraneura (Tetraneura) ulmi2025
Fig Gall Tetraneura (Tetraneura) ulmi2025
Closterotomus trivialis Closterotomus trivialis2025
Closterotomus trivialis Closterotomus trivialis2025
Hairy Shieldbug Dolycoris baccarum2025
Hairy Shieldbug Dolycoris baccarum2025
Dark Bush-cricket Pholidoptera griseoaptera2025
Dark Bush-cricket Pholidoptera griseoaptera2025
Swollen-thighed Beetle Oedemera nobilis2025
Swollen-thighed Beetle Oedemera nobilis2025
Cantharis rustica Cantharis rustica2025
Cantharis rustica Cantharis rustica2025
Common Ground-hopper Tetrix undulata2025
Common Ground-hopper Tetrix undulata2025
Zig-zag Elm Sawfly Aproceros leucopoda2025
Zig-zag Elm Sawfly Aproceros leucopoda2025
Cream-spot Ladybird Calvia quattuordecimguttata2025
Cream-spot Ladybird Calvia quattuordecimguttata2025
Orchestes quercus Orchestes quercus2025
Orchestes quercus Orchestes quercus2025
Orchestes hortorum Orchestes hortorum2025
Orchestes hortorum Orchestes hortorum2025
Orange Bordered Oak-cutter Periclista pubescens2025
Orange Bordered Oak-cutter Periclista pubescens2025
Speckled Bush-cricket Leptophyes punctatissima2025
Speckled Bush-cricket Leptophyes punctatissima2025
Cantharis pellucida Cantharis pellucida2025
Cantharis pellucida Cantharis pellucida2025
Red-legged Shieldbug Pentatoma rufipes2025
Red-legged Shieldbug Pentatoma rufipes2025
Empis tessellata Empis tessellata2025
Empis tessellata Empis tessellata2025
Eupeodes Eupeodes2025
Eupeodes Eupeodes2025 Balkan Spurge
Balkan Spurge
Euphorbia oblongata
Euphorbia oblongata
