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

The following families have modified English names:

Family: Vireonidae – Vireos, Greenlets, Shrike-babblers

Family: Icteridae – Oropendolas, Orioles, Blackbirds

Family: Cardinalidae – Cardinals & Allies

Family: Thraupidae – Tanagers & Allies


664/593T    Chivi Vireo    Vireo chivi

has been split from:

664/593F    Red-eyed Vireo    Vireo olivaceus


868/7677    Rufous-naped Wren    (Veracruz, n Oaxaca: ec Mexico)

has a new English name:

868/7677    Veracruz Wren    Campylorhynchus rufinucha


872/7752    Long-billed Gnatwren

has been split into two species:

872/7752    Trilling Gnatwren    Ramphocaenus melanurus

872/775E    Chattering Gnatwren    Ramphocaenus sticturus

(ec Peru, nw Mato Grosso: sc Brazil)


872/775P    Yucatan Gnatcatcher    Polioptila albiventris

(n Yucatán Peninsula)

has been split from:

872/7757    White-lored Gnatcatcher    Polioptila albiloris


900/808P    Campina Thrush    Turdus arthuri    (nc, c Amazonia)


900/808T    Pantepui Thrush    Turdus murinus    (s Venezuela, wc Guyana)

have been split from:

900/8085    Black-billed Thrush    Turdus ignobilis


985/9598    Cherrie’s Tanager    Ramphocelus costaricensis

(w Costa Rica, sw Panama)

has been lumped with and is now represented by a subspecies of Passerini’s Tanager, which has a new English name:

985/9597    Scarlet-rumped Tanager    Ramphocelus passerinii
































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