On February 5 2023 the International Ornithological Congress (IOC) released the latest version of its world bird list (v13.1):

Gill F, D Donsker & P Rasmussen  (Eds). 2023. IOC World Bird List (v13.1). doi :  10.14344/IOC.ML.13.1.

The IOC bird list is hosted on a dedicated World Bird Names website, which provides access to the list in various different formats. The list is updated twice a year.

The details of the changes in the v13.1 release can be found by clicking on the Updates tab on the IOC website. Here is a summary of the major amendments:

New to science

Otus Scops Owls  +1 species
Principe Scops Owl

Zosterops White-eyes  +1 species
Wangi-wangi White-eye


Pipile Piping Guans  +1 species

Guttera Guineafowl  +2

Lophura Pheasants (Firebacks)  +2

Tropicoperdix Partridges  +1

Scleroptila Francolins  +1

Coeligena Hummingbirds (Incas/Starfrontlets)  +4

Saucerottia Hummingbirds  +1

Ducula Imperial Pigeons  +1

Ciconia Storks  +1

Alcedo Kingfishers  +1

Ceyx Dwarf Kingfishers  +1

Eclectus Parrots  +3

Cyclopsitta Fig Parrots  +2

Loriculus Hanging Parrots  +1

Conophaga Gnateaters  +1

Myiopagis Tyrant Flycatchers (Elaenias)  +2

Nesotriccus Tyrant Flycatchers (Tyrannulets)  +2

Stigmatura Tyrant Flycatchers (Wagtail-Tyrants)  +1

Mionectes Tyrant Flycatchers  +1

Myiophobus Tyrant Flycatchers  +2

Contopus Tyrant Flycatchers (Pewees)  +1

Ochthoeca Tyrant Flycatchers (Chat-Tyrants)  +1

Cryptopipo Manakins  +1

Batis Batises  +1

Cyanolanius Vangas  +1

Falcunculus Shriketits  +2

Mirafra Larks  +1

Prinia Prinias  +1

Pomatorhinus Scimitar Babblers  +1

Acridotheres Mynas  +1

Gracula Mynas  +1

Turdus Thrushes  +1

Cyornis Blue Flycatchers  +2

Brachypteryx Shortwings  +4

Larvivora Robins  +1

Monticola Rock Thrushes  +1

Oenanthe Wheatears  +1

Ploceus Weavers  +2

Anaplectes Weavers  +1

Euplectes Widowbirds  +1

Tangara Tanagers  +1


Pternistis Spurfowl  -1  [Black-fronted Spurfowl]

Caprimulgus Nightjars  -1  [Black-shouldered Nightjar]

Ceyx Dwarf Kingfishers  -1  [Malaita Dwarf Kingfisher]

Indicator Honeyguides  -1  [Thick-billed Honeyguide]

Serpophaga Tyrant Flycatchers  -1  [White-bellied Tyrannulet]

Pteruthius Shrike-babblers  -2  [Himalayan Shrike-babbler, Dalat Shrike-babbler]

Mirafra Larks  -1  [Singing Bush Lark]

Horornis Bush Warblers  -1  [Sunda Bush Warbler]

Cyornis Blue Flycatchers  -1  [Tanahjampea Blue Flycatcher]

Spermestes Mannikins  -1  [Red-backed Mannikin]

Estrilda Waxbills  -1  [Abyssinian Waxbill]

Lagnostica Firefinches  -1  [Landana Firefinch]

Revision and resequencing of families

Genus Anthracothorax of Mangos within Family: Trochilidae – Hummingbirds has been resequenced.

Genus Otus of Scops Owls within Family: Strigidae – Owls has been partially resequenced.

Genera Ketupa and Scotopelia within Family: Strigidae – Owls have been resequenced.

Genus Dacelo of Kookaburras within Family: Alcedinidae – Kingfishers has been resequenced.

Family: Falcunculidae – Shriketits has a modified English name.

In the IOC bird list there are now 10980 extant species (net +47) ascribed to 252 families.

All the v13.1 changes will be reflected in the 2024 editions of the ATWB Companion Guides. These editions will be released commencing August 2023, after publication of the next version (v13.2) of the IOC bird list.


Some details …

Each of the ATWB 2023 Companion Guides has a number of important features, including:

– A complete taxonomic listing of bird species

– An indication of where each bird family and species can be found in its native state

– Spotlighted species that have a restricted regional or worldwide range

However, perhaps the key feature of all eBooks in the Companion Guide series is the way you can quickly and simply access relevant, up to date online information about every featured bird species. If your reading device is connected to the internet, a single click will take you to a search results page for a species, from where you can continue to search for additional information to whatever level of detail you desire.

The ‘All the World’s Birds’ series of Companion Guides derives its taxonomy, English names and scientific names from The IOC World Bird List, an open access resource maintained by the International Ornithological Congress (IOC). The IOC bird list is hosted on a dedicated World Bird Names website, which provides access to the list in various different formats.

The version of the IOC bird list used in the ‘All the World’s Birds 2023’ series of Companion Guides is Version 12.2, published August 7 2022.


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About Charles R Stubbs

Charles has earned his living by writing for more than 15 years. His first two mystery thriller novels, 'Web of Deceit' and 'Retribution', have been published as Kindle eBooks on Amazon. In addition, Charles has published more than 50 eBook birding companion guides, released under the "All the World's Birds" title - search ATWB in Amazon Books. Previously a senior executive in the UK telecommunications industry, since 2001 Charles has crafted sales and marketing literature for major organisations – some of them household names – enabling them to improve their business performance.

Posted on February 24, 2023, in Uncategorized. Bookmark the permalink. Leave a comment.

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