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: Podargidae – Frogmouths (Part 4 to Part 1)

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

Family: Aegothelidae – Owlet-nightjars (Part 4 to Part 1)

Family: Hemiprocnidae – Treeswifts (Part 4 to Part 1)

Family: Apodidae – Swifts (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)

12 Charadriiformes families (Part 2 to Part 3)

Family: Rhynochetidae – Kagu (Part 2 to Part 3)

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

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

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

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

**********************************************

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

**********************************************

Genus Alopecoenas of ground doves has been renamed:

Pampusana

**********************************************

286/164P    Australian Tern    Gelochelidon macrotarsa

(Australia, s New Guinea)

has been split from:

286/1646    Gull-billed Tern    Gelochelidon nilotica

**********************************************

323/2359    Southern Boobook    Ninox boobook

has been split into four species:

323/2359    Australian Boobook    Ninox boobook

(Sawu: sc Lesser Sundas, e Lesser Sundas, sc New Guinea, Australia)

323/23F0    Rote Boobook    Ninox rotiensis    (Rote: Lesser Sundas)

323/23F1    Timor Boobook    Ninox fusca    (Timor: Lesser Sundas)

323/23F2    Alor Boobook    Ninox plesseni    (Alor: Lesser Sundas)

**********************************************

323/2372    Hantu Boobook    Ninox squamipila

has been split into two species:

323/2372    Seram Boobook    Ninox squamipila    (Seram: se Moluccas)

323/237E    Buru Boobook    Ninox hantu    (Buru: sw Moluccas)