Category D species
Species that would otherwise appear in Category A except that there is reasonable doubt that they have ever occurred in a natural state.
Category D is a holding category and is not intended to be a long-term assignment of any species. These species are reviewed regularly with a view to assign them to either A or E.
Species placed in Category D only form no part of the British List, and are not included in the species totals.
These species form no part of the British List.
Ross’s Goose* Anser rossii DE
Falcated Duck* Anas falcata DE
Marbled Duck* Marmaronetta angustirostris DE
White-headed Duck* Oxyjura leucocephala DE
Great White Pelican* Pelecanus onocrotalus DE
Greater Flamingo* Phoenicopterus ruber DE
Bald Eagle* Haliaeetus leucocephalus DE
Egyptian Vulture* Neophron percnopterus DE
Booted Eagle* Hieraaetus pennatus DE
Saker Falcon* Falco cherrug DE
Daurian Starling* Agropsar sturninus DE
Mugimaki Flycatcher* Ficedula mugimaki D
Red-headed Bunting* Emberiza bruniceps DE
Yellow-headed Blackbird* Xanthocephalus xanthocephalus DE
Palm Warbler* Dendroica palmarum D