Unreported Species in eBird

The Clements taxonomy, after the latest August 2019 update, includes 10,721 species.

As of September 2019, 10,507 of these have at least one eBird record.

So there are 214 species which have no records in eBird. What are they?

(It should be noted that while there are currently 140 “sensitive” species which do not have any information regarding when they were last seen, they obviously have been seen recently, so they do not count against the difference of 214.)

Of the 214 missing species, 139 are listed as extinct. So there are 75 species waiting to get their first eBird record. I find this amazing. Here are the elusive 75:

Abd al Kuri Sparrow Passer hemileucus
Alagoas Curassow Mitu mitu
Aldabra Brush-Warbler Nesillas aldabrana
Ash’s Lark Mirafra ashi
Bare-legged Swiftlet Aerodramus nuditarsus
Bates’s Weaver Ploceus batesi
Bismarck Thicketbird Cincloramphus grosvenori
Black-lored Waxbill Estrilda nigriloris
Blue-wattled Bulbul Pycnonotus nieuwenhuisii
Bougainville Thrush Zoothera atrigena
Cayenne Nightjar Setopagis maculosa
Chapin’s Mountain-Babbler Turdoides chapini
Chestnut-shouldered Goshawk Erythrotriorchis buergersi
Coastal Boubou Laniarius nigerrimus
Congo Bay-Owl Phodilus prigoginei
Coppery Thorntail Discosura letitiae
Cryptic Treehunter Cichlocolaptes mazarbarnetti
Duida Grass-Finch Emberizoides duidae
Dulit Partridge Rhizothera dulitensis
Glaucous Macaw Anodorhynchus glaucus
Golden-fronted Bowerbird Amblyornis flavifrons
Gorgeted Puffleg Eriocnemis isabellae
Itombwe Nightjar Caprimulgus prigoginei
Javan Lapwing Vanellus macropterus
Kabobo Apalis Apalis kaboboensis
Kauai Nukupuu Hemignathus hanapepe
Kinglet Calyptura Calyptura cristata
Kordofan Lark Mirafra cordofanica
Lake Lufira Masked-Weaver Ploceus ruweti
Louisiade Flowerpecker Dicaeum nitidum
Louisiade Pitta Erythropitta meeki
Luzon Buttonquail Turnix worcesteri
Makira Moorhen Gallinula silvestris
Manus Masked-Owl Tyto manusi
Maui Nukupuu Hemignathus affinis
Mayr’s Rail Rallina mayri
Moorea Reed Warbler Acrocephalus longirostris
Mountain Starling Aplonis santovestris
Namuli Apalis Apalis lynesi
Naung Mung Scimitar-Babbler Napothera naungmungensis
Nechisar Nightjar Caprimulgus solala
Negros Fruit-Dove Ptilinopus arcanus
New Caledonian Nightjar Eurostopodus exul
New Caledonian Owlet-nightjar Aegotheles savesi
New Caledonian Rail Gallirallus lafresnayanus
New Hanover Munia Lonchura nigerrima
Niam-Niam Parrot Poicephalus crassus
Oahu Alauahio Paroreomyza maculata
Pernambuco Pygmy-Owl Glaucidium mooreorum
Pohnpei Starling Aplonis pelzelni
Prigogine’s Sunbird Cinnyris prigoginei
Red Sea Swallow Petrochelidon perdita
Rio de Janeiro Antwren Myrmotherula fluminensis
Rotuma Myzomela Myzomela chermesina
Rück’s Blue Flycatcher Cyornis ruckii
Rusty Lark Mirafra rufa
Saffron-breasted Redstart Myioborus cardonai
Sangihe White-eye Zosterops nehrkorni
Sassi’s Greenbul Phyllastrephus lorenzi
Schouteden’s Swift Schoutedenapus schoutedeni
Shelley’s Crimsonwing Cryptospiza shelleyi
Siau Scops-Owl Otus siaoensis
Slender-tailed Cisticola Cisticola melanurus
Society Islands Reed Warbler Acrocephalus musae
Somali Pigeon Columba oliviae
Sulu Bleeding-heart Gallicolumba menagei
Tachira Antpitta Grallaria chthonia
Tagula White-eye Zosterops meeki
Three-toed Swiftlet Aerodramus papuensis
Turquoise-throated Puffleg Eriocnemis godini
Vilcabamba Brushfinch Atlapetes terborghi
White-chested White-eye Zosterops albogularis
White-eyed River Martin Pseudochelidon sirintarae
White-faced Redstart Myioborus albifacies
Yellow-legged Weaver Ploceus flavipes

Another way to look at this is that Clements has 10,561 total species that it does not consider extinct.

That means that to see at least half the world’s species, with a 1% margin for error, one will need 5,333 birds.

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