Rare Birds in Hertfordshire
54 species matching this filter.
Hertfordshire may be a largely inland county, but its mix of reservoirs, chalk streams, ancient woodlands, and farmland attracts an impressive array of rare bird species. With 54 species classified as rare, patient observers may encounter elusive visitors such as Eurasian Bittern, Bohemian Waxwing, Aquatic Warbler, and Garganey. These sightings often coincide with seasonal migrations or harsh weather events that push uncommon species into the county's varied habitats.
Showing 24–46 of 54 species
Great White Egret
Ardea albaLC
A rare but increasingly recorded non-breeding visitor to wetlands and river valleys, reflecting the species' ongoing expansion across southern England.
Sep–Mar
Greater White-fronted Goose
Anser albifronsLC
A rare passage visitor with occasional May records. Wild birds are difficult to separate from escapes, making each sighting noteworthy.
May
Greenshank
Tringa nebulariaLC
A rare passage migrant recorded at gravel pits and reservoirs in spring and late summer. A rewarding find for county birders.
Apr–Sep
Grey Partridge
Perdix perdixLC
Now rare in the county due to agricultural intensification. Favours arable farmland edges and stubble fields, with numbers in serious long-term decline.
Aug–Jun
Hawfinch
Coccothraustes coccothraustesLC
A rare winter visitor, occasionally seen in mature woodland and parkland with hornbeam, notably at Tring and Bramfield.
Nov–Feb
Hoopoe
Upupa epopsLC
An exotic-looking rarity, very occasionally overshooting from the Continent in late spring. Any Hertfordshire record generates considerable local excitement.
Jun
Jack Snipe
Lymnocryptes minimusLC
A secretive and rare winter visitor to marshy areas and waterlogged meadows. Easily overlooked due to its skulking habits.
Oct–Mar
Little Gull
Hydrocoloeus minutusLC
A rare spring passage migrant, occasionally dropping in at reservoirs during April. A delicate gull that rarely lingers in the county.
Apr
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Little Owl
Athene noctuaLC
A scarce resident of farmland with old trees and hedgerows, declining across the county but still found at traditional sites.
Year-round
Mandarin Duck
Aix galericulataLC
A scarce but resident breeder, favouring wooded rivers and lakes. Most likely encountered along tree-lined stretches of the Lea or Colne valleys.
Year-round
Marsh Tit
Poecile palustrisLC
A scarce resident of mature deciduous woodland, declining across the county. Best found in ancient woods with good understorey, such as those in the Chilterns.
Jun–Apr
Nightingale
Luscinia megarhynchosLC
A rare passage visitor in May, once more widespread as a breeder in the county. Dense scrub and thickets may briefly host singing birds on migration.
May
Northern Pintail
Anas acutaLC
A rare non-breeding visitor to reservoirs and gravel pits from autumn through winter. Small numbers occasionally appear in the Lea Valley.
Sep–Mar
Osprey
Pandion haliaetusLC
A rare autumn passage visitor, occasionally spotted at reservoirs and gravel pits during September migration.
Sep
Peregrine Falcon
Falco peregrinusLC
A rare but increasing resident, now breeding on tall structures in urban areas and hunting over open countryside.
Year-round
Red Crossbill
Loxia curvirostraLC
A rare autumn passage visitor, occasionally irrupting into conifer plantations in October and November.
Oct–Nov
Red-necked Grebe
Podiceps grisegenaLC
A rare spring passage visitor, occasionally turning up on larger waterbodies between February and April. Always a notable county record.
Feb–Apr
Ring Ouzel
Turdus torquatusLC
A rare spring passage migrant, briefly pausing in April on open ground or hilltops. Most records come from the chalk downland edges of the Chilterns.
Apr
Ringed Plover
Charadrius hiaticulaLC
A rare breeding visitor, favouring gravelly shores at reservoirs and gravel pits. Present from March to September.
Mar–Sep
Ruddy Duck
Oxyura jamaicensisLC
Now extremely rare following a national eradication programme. Occasional sightings at gravel pits between April and October likely involve lingering individuals.
Apr–Oct
Ruff
Philomachus pugnaxLC
A rare autumn passage migrant appearing briefly at muddy reservoir margins and gravel pits in August and September.
Aug–Sep
Short-eared Owl
Asio flammeusLC
A rare passage visitor, occasionally recorded hunting over open farmland and rough grassland in midwinter.
Jan
Spotted Flycatcher
Muscicapa striataLC
A rare and declining summer breeder, favouring woodland edges and churchyards; present from May to September.
May–Sep