Species Requiring a Description

List of species requiring a description by the ISBG Rarities Committee:

In addition to the species listed below, please note that descriptions may also be required for species seen out of season, e.g. Sandwich Tern in December, or in unusual locations, e.g. Puffin on the Great Pool.

Bewick’s Swan
Grey geese (except White-fronted)
Egyptian Goose
Mandarin Duck
American Wigeon
Green-winged Teal
Red-crested Pochard
Ring-necked Duck
Ferruginous Duck
Lesser Scaup
Eider (except non-eclipse males)
Surf Scoter
Velvet Scoter
Smew
Goosander
Ruddy Duck
White-billed Diver
Balearic Shearwater (except birds seen from pelagic trips or in winter)
Wilson’s Petrel (except birds seen from pelagic trips)
Leach’s Petrel
Bittern
Night-heron
Cattle Egret
Great White Egret
Purple Heron
White Stork
Glossy Ibis
Red-necked Grebe
Honey-buzzard
Black Kite
Red Kite
White-tailed Eagle
Montagu’s Harrier
Goshawk
Rough-legged Buzzard
Spotted Crake
Corncrake
Crane
Stone-curlew
Avocet
American Golden Plover
Kentish Plover
Temminck’s Stint
White-rumped Sandpiper
Buff-breasted Sandpiper
Pectoral Sandpiper
Red-necked Phalarope
Pomarine Skua
Long-tailed Skua
Black Guillemot
White-winged Black Tern
Roseate Tern
Sabine’s Gull
Ring-billed Gull
Yellow-legged Gull
Caspian Gull
Kumlien’s (Iceland) Gull
Barn Owl
Little Owl
Tawny Owl
Nightjar
Alpine Swift
Bee-eater
Green Woodpecker
Red-footed Falcon
Ring-necked Parakeet
Great Grey Shrike
Woodchat Shrike
Chough
Magpie
Jay
Penduline Tit
Crested Tit
Coal Tit
Marsh Tit
Bearded Tit
Short-toed Lark
Woodlark
Shore Lark
Red-rumped Swallow
Cetti’s Warbler
Long-tailed Tit
Greenish Warbler
Pallas’s Warbler
Radde’s Warbler
Dusky Warbler
Siberian Chiffchaff (in May to September only)
Barred Warbler
Dartford Warbler
Subalpine Warbler (not identified to sub-species)
Icterine Warbler
Melodious Warbler
Blyth’s Reed Warbler
Marsh Warbler
Waxwing
Treecreeper
Nightingale
Bluethroat
Tree Sparrow
‘Yellow’ Wagtails (except flava and flavissima)
Citrine Wagtail
Richard’s Pipit
Olive-backed Pipit
Water Pipit
Common Rosefinch
Twite
Common Redpoll (all races)
Arctic Redpoll
Serin
Yellowhammer
Cirl Bunting
Ortolan Bunting
Little Bunting
Corn Bunting

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