On this page you can view how changes to the IOC bird list have impacted on the contents of this ATWB eBook since its first annual edition.

The contents of this eBook have been incorporated into a compendium eBook. For the impact of IOC bird list updates from 2021 edition onwards, click here.

2019 edition -> 2020 edition     IOC bird list v 8.2 -> IOC bird list v 9.2

Non-Passerine Orders have been resequenced.

The following families have been moved to a different part of the IOC birdlist:

Family: Steatornithidae – Oilbird (Part 4 to Part 1)

Family: Nyctibiidae – Potoos (Part 4 to Part 1)

Family: Caprimulgidae – Nightjars (Part 4 to Part 1)

Family: Apodidae – Swifts (Part 4 to Part 1)

Family: Trochilidae – Hummingbirds (Part 4 to Part 1)

Family: Cuculidae – Cuckoos (Part 3 to Part 2)

Family: Columbidae – Pigeons, Doves (Part 3 to Part 2)

Family: Podicipedidae – Grebes (Part 1 to Part 2)

Family: Phoenicopteridae – Flamingos (Part 1 to Part 2)

13 Charadriiformes families (Part 2 to Part 3)

Family: Eurypygidae – Sunbittern (Part 2 to Part 3)

Family: Phaethontidae – Tropicbirds  (Part 1 to Part 3)

Family: Gaviidae – Loons (Part 1 to Part 3)

Family: Spheniscidae – Penguins (Part 1 to Part 3)

Family: Oceanitidae – Austral Storm Petrels (Part 1 to Part 3)

Family: Diomedeidae – Albatrosses (Part 1 to Part 3)

Family: Hydrobatidae – Northern Storm Petrels (Part 1 to Part 3)

Family: Procellariidae – Petrels, Shearwaters, Diving Petrels (Part 1 to Part 3)

Family: Ciconiidae – Storks (Part 1 to Part 3)

Family: Fregatidae – Frigatebirds (Part 1 to Part 3)

Family: Sulidae – Gannets, Boobies (Part 1 to Part 3)

Family: Phalacrocoracidae – Cormorants, Shags (Part 1 to Part 3)

Family: Anhingidae – Anhingas, Darters (Part 1 to Part 3)

Family: Threskiornithidae – Ibises, Spoonbills (Part 1 to Part 3)

Family: Ardeidae – Herons, Bitterns (Part 1 to Part 3)

Family: Pelecanidae – Pelicans (Part 1 to Part 3)

Family: Cathartidae – New World Vultures (Part 2 to Part 4)

Family: Pandionidae – Ospreys (Part 2 to Part 4)

Family: Accipitridae – Kites, Hawks, Eagles (Part 2 to Part 4)

Family: Cariamidae – Seriemas (Part 2 to Part 5)

Family: Tytonidae – Barn Owls (Part 3 to Part 4)

Family: Strigidae – Owls (Part 3 to Part 4)

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The following families have modified English names:

Family: Phasianidae – Pheasants & Allies

Family: Anatidae – Ducks, Geese, Swans

Family: Rallidae – Rails, Crakes & Coots

Family: Laridae – Gulls, Terns, Skimmers

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007/0045    Chaco Nothura    Nothura chacoensis    (nw Paraguay)

has been lumped with and is now represented by a subspecies of:

007/0044    Spotted Nothura    Nothura maculosa

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355/266T    Dry-forest Sabrewing    Campylopterus calcirupicola    (ec Brazil)

is a newly described species

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355/2807    White-tailed Hillstar    Urochroa bougueri

has been split into two species:

355/2807    Rufous-gaped Hillstar    Urochroa bougueri

(wc, sw Colombia, nc Ecuador)

355/280E    Green-backed Hillstar    Urochroa leucura

(sw Colombia, Ecuador, nc Peru)

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355/281E    Green-headed Hillstar    Oreotrochilus stolzmanni

(c, nc Peru, se Ecuador)

has been split from:

355/2814    Andean Hillstar    Oreotrochilus estella

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355/281P    Blue-throated Hillstar    Oreotrochilus cyanolaemus    (sc Ecuador)

is  a newly described species

 

2018 edition -> 2019 edition     IOC bird list v 7.3 -> IOC bird list v 8.2

The following families have modified English names:

Family: Cracidae – Chachalacas, Curassows, Guans

Family: Procellariidae – Petrels, Shearwaters, Diving Petrels

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303/1847    Indigo-crowned Quail-Dove    (nw Ecuador, sw, wc Colombia)

has a new English name:

303/1847    Purple Quail-Dove    Geotrygon purpurata

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323/2261    Colombian Screech Owl    Megascops colombianus

(wc, sw Colombia, nw Ecuador)

has been lumped with and is now represented by a subspecies of:

323/2260    Rufescent Screech Owl    Megascops ingens

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323/2267    Roraiman Screech Owl    (nw SA)

has a new English name:

323/2267    Foothill Screech Owl    Megascops roraimae

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323/2268    Napo Screech Owl    Megascops napensis

(e Andean slope of nw SA)

has been lumped with and is now represented by a subspecies of:

323/2267    Foothill Screech Owl    Megascops roraimae

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323/227E    Santa Marta Screech Owl    Megascops gilesi

(Santa Marta Mountains: ne Colombia)

is a newly described species

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The putative species Ecuador Plumeleteer found in sw Ecuador, which was formerly treated as a subspecies of:

355/2782    Bronze-tailed Plumeleteer,

has been re-ascribed to species White-vented Plumeleteer. Consequently, the range of this species has been extended to:

355/2781    White-vented Plumeleteer

(e Panama, w, n, c Colombia, nw, nc Venezuela, sw Ecuador)

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355/2804    Admirable Hummingbird    (Costa Rica, w Panama)

has a new English name:

355/2804    Talamanca Hummingbird    Eugenes spectabilis