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: 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)

11 Charadriiformes families (Part 2 to Part 3)

Family: Ciconiidae – Storks (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)

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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

Family: Eurylaimidae – Typical Broadbills

Family: Vangidae – Vangas & Allies

Family: Artamidae – Woodswallows, Butcherbirds & Allies

Family: Pachycephalidae – Whistlers & Allies

Family: Vireonidae – Vireos, Greenlets, Shrike-babblers

Family: Oriolidae – Figbirds, Orioles, Turnagra

Family: Cettiidae – Cettia Bush Warblers & Allies

Family: Phylloscopidae – Leaf Warblers & Allies

Family: Acrocephalidae – Reed Warblers & Allies

Family: Locustellidae – Grassbirds & Allies

Family: Cisticolidae – Cisticolas & Allies

Family: Leiothrichidae – Laughingthrushes & Allies

Family: Estrildidae – Waxbills, Munias & Allies

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371/298E    Indochinese Roller    Coracias affinis

has been split from:

371/2981    Indian Roller    Coracias benghalensis

(s Sikkim, n West Bengal, nw Assam)

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Family Leiothrichidae – Laughingthrushes & Allies has been revised and resequenced. As part of this review the following species have been ascribed to a new or different genus:

832/7408    Striated Laughingthrush    Grammatoptila striata

832/742Y    Bar-throated Minla    Actinodura strigula

832/742F    Blue-winged Minla    Actinodura cyanouroptera

832/7445    Rufous-backed Sibia    Leioptila annectens

832/7348    Striated Babbler    Argya earlei

832/7355    Jungle Babbler    Argya striata

832/734F    Slender-billed Babbler    Argya longirostris

832/7386    Spotted Laughingthrush    Ianthocincla ocellata

832/7380    Moustached Laughingthrush    Ianthocincla cineracea

832/7381    Rufous-chinned Laughingthrush    Ianthocincla rufogularis

832/7396    Rufous-necked Laughingthrush    Pterorhinus ruficollis

832/7393    Chestnut-backed Laughingthrush    Pterorhinus nuchalis

832/7397    Yellow-throated Laughingthrush    Pterorhinus galbanus

832/739F    Rufous-vented Laughingthrush    Pterorhinus gularis

832/738Y    White-throated Laughingthrush    Pterorhinus albogularis

832/7392    Greater Necklaced Laughingthrush    Pterorhinus pectoralis

832/7400    Grey-sided Laughingthrush    Pterorhinus caerulatus

832/736Y    Mount Victoria Babax    Pterorhinus woodi

832/7403    White-browed Laughingthrush    Pterorhinus sannio

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840/756Y    Oriental White-eye

has a new English name:

840/756Y    Indian White-eye    Zosterops palpebrosus

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Four subspecies of:

907/8173    Hill Blue Flycatcher    Cyornis banyumas

have been split to form a species that has been allocated the same English name:

907/817E    Hill Blue Flycatcher    Cyornis whitei

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907/82F0    Himalayan Shortwing    Brachypteryx cruralis

has been split from:

907/8239    White-browed Shortwing    (Philippines, w, sc Indonesia)