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| Sites in Hertfordshire (website) | ||
| Main Sites | ||
| Amwell GP (TL380125) (website) | Habitat: Gravel pit, with reeds and mature trees, developed for wildlife. | Species: All year: Ruddy Duck. Summer: most common waterbirds can be found; Hobby; along with Sedge and Reed Warblers, Whitethroat, Garden Warbler, Blackcap, Chiff-chaff and Willow Warbler. Passage: occasional Black-necked Grebe, Red-necked or Slavonian Grebes; Garganey, raptors such as Marsh Harrier, Buzzard, Osprey, Hobby; wader species pass through in small numbers with the occasional as Oystercatcher, Grey Plover, Dunlin, Whimbrel and Turnstone; the occasional Little Gull, Sandwich, Arctic or Black Terns; plus passerines such as Larks, Pipits, Wagtails, Wheatear, Whinchat and the occasional Redstart. Winter: occasional Red-necked, Slavonian and Black-necked Grebes; Bittern; Scaup, Goosander and Red-breasted Merganser. |
| Broxbourne Woods (TL340080) (website) | Habitat: Mature mixed woodland with some open areas | Species: All year: Common Woodland species. Summer: Hobby, Tree Pipit and other Heathland species; Whitethroat, Garden Warbler, Blackcap, Chiff-chaff, Willow Warbler and Redpoll. Passage: occasional raptor, such as Buzzard; plus passerines, including the occasional Redstart, Wood Warbler, Pied Flycatcher and Firecrest. Winter: Winter finches, such as Brambling and occasionally Crossbills. |
| Cheshunt GPs (TL370030) | Habitat: Mature deep water gravel pit, with reeds and mature trees. | Species: Summer: most common waterbirds can be found; Hobby; along with Sedge and Reed Warblers, Whitethroat, Garden Warbler, Blackcap, Chiff-chaff and Willow Warbler. Passage: occasional raptor such as Marsh Harrier, Buzzard, Osprey, Hobby; plus passerines such as Wheatear, Whinchat and the occasional Redstart. Winter: Bittern (at the Bittern watchpoint); occasional Smew or Goosander, Long-eared Owl, thrushes and finches. |
| Hilfield Park Reservoir (TQ158959) (website) | Habitat: reservoir, set in a semi-natural setting, with one end with a concrete bank, reeds and woodland.
NO public access. Open to members of Herts & Middlesex WT
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Species: All year: Ruddy Duck. Summer: most common waterbirds can be found; Hobby; along with Sedge and Reed Warblers, Whitethroat, Garden Warbler, Blackcap, Chiff-chaff and Willow Warbler. Passage: Black-necked Grebe, occasiuonally Red-necked or Slavonian Grebes; the odd Garganey, Common Scoter, Scaup, and Red-breasted Merganser; the occasional raptor such as Osprey, Hobby; wader species pass through in small numbers with the occasional as Oystercatcher, Grey Plover, Little Stint, Dunlin, Whimbrel and Turnstone; the occasional Little Gull, Sandwich, Arctic, Little, or Black Terns; occasional Little Auk (autumn - rare); plus passerines on the embankment, such as Larks, Pipits (including Rock), Wagtails, Wheatear, Whinchat and the occasional Redstart. Winter: (especially after easterlies or harsh conditions): Divers; Red-necked, Slavonian and Black-necked Grebes; Bewick's Swans; Brent Geese; Scaup, Common Scoter, Goosander and Red-breasted Merganser. This sites has a Gull roost that can contain Mediterranean Gulls. Rarities: have included Blue-winged Teal, Serin and Little Bunting. |
| Northaw Great Wood (TL285044) | Habitat: Mature mixed woodland.
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Species: All year: Common Woodland species including Marsh Tit. Summer: Whitethroat, Garden Warbler, Blackcap, Chiff-chaff, Willow Warbler and Redpoll. Passage: occasional raptor, such as Buzzard; plus passerines, including the occasional Redstart, Wood Warbler, and Pied Flycatcher. Winter: Winter thrushes and finches. |
| Prae Wood (TQ120070) | Habitat: Mature mixed woodland. | Species: All year: Buzzard. Summer: Hobby; Whitethroat, Garden Warbler, Blackcap, Chiff-chaff, Willow Warbler and Redpoll. Passage: passerines, including the occasional Redstart, and Pied Flycatcher. Winter: Winter thrushes and finches, such as Brambling and occasionally Crossbills. |
| Rye House Marsh (TL383103) (website) Rye Meads (TL388102) (website) | Habitat: old sewage works, with disused filter beds, lagoons and reeds.
Rye House Marsh is an RSPB reserve. The remainder of the area, Rye Meads SF has restricted access
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Species: Summer: most common waterbirds can be found; Hobby; along with Sedge and Reed Warblers, Whitethroat, Garden Warbler, Blackcap, Chiff-chaff and Willow Warbler. Passage: occasional Garganey, raptors such as Marsh Harrier, Buzzard, Osprey, Hobby; wader species pass through in small numbers with the occasional as Oystercatcher, Grey Plover, Dunlin, Whimbrel and Turnstone; plus passerines such as Larks, Pipits, Wagtails, Wheatear, Whinchat and the occasional Redstart. Winter: Bittern; wildfowl; Jack Snipe; Water Pipit, finches and thrushes. Rarities: have included Little Bittern and Serin. |
| Stocker's Lake (TQ046935) (website) | Habitat: Mature deep water gravel pit, with reeds and mature trees.
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Species: All year: Ruddy Duck Summer: most common waterbirds can be found; Hobby; along with Sedge and Reed Warblers, Whitethroat, Garden Warbler, Blackcap, Chiff-chaff and Willow Warbler. Passage: rarely the occasional Red-necked, Slavonian or Black-necked Grebes; occasional Scaup; the occasional raptor, such as Marsh Harrier, Osprey, Hobby, passerines including Wagtails, Wheater, Whinchat, and the occasional Redstart. Winter: the odd rare records of Red-necked, Slavonian or Black-necked Grebes, Bittern (annual), Scaup (very rare); Smew appearing occasionally; Goosander in small numbers; along withwith overwintering Chiff-chaff. Rarities: have included Eider, Black Kite and Wryneck. |
| Tyttenhanger GP (TQ191865) | Habitat: Gravel pit, with deep water areas and shallow sandy margins and pools.
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pecies: Summer: most common waterbirds can be found; Hobby; Little Ringed and Ringed Plover, Redshank, and Lapwing; along with Whitethroat, Garden Warbler, Blackcap and Willow Warbler. Passage: occasional Garganey, raptors such as Marsh Harrier, Buzzard, Osprey, Hobby; wader species pass through in small numbers with the occasional as Oystercatcher, Grey Plover, Dunlin, Whimbrel, Greenshank, Wood Sandpiper and Turnstone; plus passerines such as Larks, Pipits, Wagtails, Wheatear, Whinchat and the occasional Redstart. Winter: occasional Goosander. Rarities: have included Lesser Scaup and Short-toed Lark. |
| Whippendell Wood (TQ075977) | Habitat: Mature deciduous woodland.
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Species: All year: Common Woodland species, plus Lesser Spotted Woodpecker, Marsh Tit and Hawfinch, though no Hawfinch have been reported in recent times. Summer: Blackcap, Chiff-chaff, and Willow Warbler. Passage: occasional raptor, such as Buzzard; plus passerines, including the occasional Redstart, Wood Warbler, and Pied Flycatcher. Winter: Winter thrushes and finches. |
| Other Sites | ||
| Aldenham Country Park (TQ169995) | ||
| Cassiobury Park (TQ090970) (website) | ||
| Maple Lodge NR (TQ036924) | ||
| Tilehouse GP (TQ038898) | ||
| Troy Mill GP (TQ039905) | ||
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