Species requiring a description

To enable us to present our reports with complete accuracy, contributors are reminded that records of certain species must be supported by descriptions taken in the field or as soon as possible after the sighting – preferably before reference to textbooks.

Caspian Gull, Rufforth © Tim Jones, Feb 2015
Caspian Gull, Rufforth © Tim Jones, Feb 2015

National and county rarities, considered by the British Birds Rarities Committee (BBRC) and the Yorkshire Naturalists’ Union (YNU) Reports Committee respectively, must be described. Forms can be obtained from any YNU vice-county recorder or the YNU website. It would help both the YOC Recorder and the YNU if descriptions were submitted as soon as possible after the sighting. Please copy the YOC Recorder () into any submission you make to the YNU or BBRC to ensure no records are missed.

Click on the buttons to get to the BBRC and/or YNU websites for information on the latest lists:

BBRC SpeciesYNU Species

YOC Description Species

Additionally, contributors are asked to provide details to the YOC Recorder () by email or using the Rare and Scarce species form for species/subspecies listed here:

Brent Goose – all races (except Black Brant, which is YNU)
Tundra Bean Goose
(Greenland) White-fronted Goose
Bewick’s Swan
Garganey (away from LDV)
Red-crested Pochard
Scaup
Eider
Velvet Scoter
Long-tailed Duck
Red-breasted Merganser

Nightjar
Turtle Dove
Corncrake (away from LDV needs to go to YNU)
Spotted Crake (away from LDV needs to go to YNU)
Crane
Red-necked Grebe
Slavonian Grebe
Black-necked Grebe

Dotterel
Bar-tailed Godwit
Knot
Curlew Sandpiper
Temminck’s Stint
Sanderling
Purple Sandpiper
Little Stint
Grey Phalarope
Spotted Redshank
Kittiwake
Little Gull
Mediterranean Gull
Caspian Gull
Yellow-legged Gull

Sandwich Tern
Little Tern
Arctic Tern
Black Tern
Great Skua
Pomarine Skua
Arctic Skua
Long-tailed Skua
Little Auk
Guillemot
Razorbill
Puffin

Red-throated Diver
Black-throated Diver
Great Northern Diver
Storm-petrel
Leach’s Petrel
Fulmar
Manx Shearwater
White Stork
Gannet
Shag

Spoonbill
Bittern
Cattle Egret
Great Egret
Osprey
Goshawk+
Hen Harrier
Long-eared Owl
Short-eared Owl
Bee-eater
Wryneck
Lesser Spotted Woodpecker
Ring-necked Parakeet
Red-backed Shrike
Hooded Crow
Raven
Willow Tit
Bearded Tit
Woodlark (away from the main sites)
Shore Lark

Cetti’s Warbler
Wood Warbler
Yellow-browed Warbler
Siberian Chiffchaff
Icterine Warbler
Barred Warbler
Firecrest
Ring Ouzel
Red-breasted Flycatcher
Pied Flycatcher
Black Redstart
Dipper

Yellow Wagtail (‘Blue-headed’ race and ‘Channel’ hybrid)
Richard’s Pipit
Water Pipit +
Rock Pipit +
Hawfinch
Common Rosefinch
Twite
Common (“Mealy”) Redpoll
Lapland Bunting
Snow Bunting
For species marked with cross (+), acceptance is only likely with a good photograph or video, which will enable elimination of similar species.

Furthermore, the Recorder may ask contributors to provide some supporting evidence for some species not listed in the files, taking into account such factors as observer experience, out-of-season occurrences and unusual or difficult plumages, etc. This will be at the Recorder’s discretion and the list of species requiring descriptions is under constant review. Note that if photographs showing key identification features are submitted of these species a field description may not be required (as long as details such as location, date, observer, etc. accompany the photographs).

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